Optix OSN

OptiX OSN 550 Multi-Service CPE Optical Transmission SystemV100R005C01

Hardware Description

Issue 01

Date 2011-06-30

HUAWEI TECHNOLOGIES CO., LTD.

Copyright © Huawei Technologies Co., Ltd. 2011. All rights reserved.

No part of this document may be reproduced or transmitted in any form or by any means without prior written consent of Huawei Technologies Co., Ltd.

Trademarks and Permissions

and other Huawei trademarks are trademarks of Huawei Technologies Co., Ltd.

All other trademarks and trade names mentioned in this document are the property of their respective holders.

Notice

The purchased products, services and features are stipulated by the contract made between Huawei and the customer. All or part of the products, services and features described in this document may not be within the purchase scope or the usage scope. Unless otherwise specified in the contract, all statements, information, and recommendations in this document are provided "AS IS" without warranties, guarantees or representations of any kind, either express or implied.

The information in this document is subject to change without notice. Every effort has been made in the preparation of this document to ensure accuracy of the contents, but all statements, information, and recommendations in this document do not constitute the warranty of any kind, express or implied.

Huawei Technologies Co., Ltd.

Address: Huawei Industrial Base

Bantian, Longgang

Shenzhen 518129

People's Republic of China

Website: http://www.huawei.com

Email: [email protected]

Issue 01 (2011-06-30)Huawei Proprietary and Confidential

Copyright © HuaweiTechnologies Co., Ltd.

i

mailto:[email protected]

http://www.huawei.com/

OptiX OSN 550 Multi-Service CPE Optical Transmission SystemHardware Description About This Document

About This Document

Product VersionThe following table lists the product versions applicable to this documentation.

Product Name Product Version

OptiX OSN 550 V100R005C01

iManager U2000 V100R005

Intended AudienceThis document describes the OptiX OSN 550 in terms of hardware architecture, boards, cables.

This document is intended for the following engineers:

Network planning engineers

Hardware installers

Symbol ConventionsThe symbols that may be found in this document are defined as follows.

Symbol Description

Indicates a hazard with a high level of risk, which if not avoided, will result in death or serious injury.

Indicates a hazard with a medium or low level of risk, which if not avoided, could result in minor or moderate injury.

Indicates a potentially hazardous situation, which if not avoided, could result in equipment damage, data loss, performance degradation, or unexpected results.

Issue 01 (2011-06-30) Huawei Proprietary and Confidential Copyright © Huawei

Technologies Co., Ltd.

ii

OptiX OSN 550 Multi-Service CPE Optical Transmission SystemHardware Description About This Document

Symbol Description

Indicates a tip that may help you solve a problem or save time.

Provides additional information to emphasize or supplement important points of the main text.

GUI Conventions

Convention Meaning

Boldface Buttons, menus, parameters, tabs, window, and dialog titles are in boldface. For example, click OK.

> Multi-level menus are in boldface and separated by the ">" signs. For example, choose File > Create > Folder.

Change HistoryUpdates between document issues are cumulative. Therefore, the latest document issue contains all updates made in previous issues.

Updates in Issue 01 (2011-06-30)

Initial formal release.



iii

OptiX OSN 550 Multi-Service CPE Optical Transmission SystemHardware Description Contents

Contents

About This Document........................................................................ii

1 Chassis..........................................................................................1

2 Boards and Their Appearances.......................................................52.1 Board List..........................................................................................................................................................5

2.2 Board Appearance............................................................................................................................................17

3 System Control, Switching, and Timing Boards..............................203.1 PCX..................................................................................................................................................................20

3.1.1 Version Description................................................................................................................................21

3.1.2 Functions and Features...........................................................................................................................22

3.1.3 Working Principle and Signal Flow........................................................................................................27

3.1.4 Front Panel..............................................................................................................................................30

3.1.5 DIP Switches and CF Card.....................................................................................................................33

3.1.6 Valid Slots...............................................................................................................................................36

3.1.7 Feature Code...........................................................................................................................................37

3.1.8 Technical Specifications.........................................................................................................................38

4 Packet Processing Boards.............................................................424.1 EF8F.................................................................................................................................................................42




4.1.4 Front Panel..............................................................................................................................................50

4.1.5 DIP Switches and Jumpers.....................................................................................................................50

4.1.6 Valid Slots...............................................................................................................................................51

4.1.7 Feature Code...........................................................................................................................................51


4.2 EM6T/EM6F....................................................................................................................................................52




4.2.4 Front Panel..............................................................................................................................................60




iv


4.2.6 Valid Slots...............................................................................................................................................63

4.2.7 Feature Code...........................................................................................................................................63


4.3 MD1.................................................................................................................................................................64




4.3.4 Front Panel..............................................................................................................................................69


4.3.6 Valid Slots...............................................................................................................................................72

4.3.7 Feature Code...........................................................................................................................................72


5 SDH Boards.................................................................................745.1 SL1D................................................................................................................................................................74




5.1.4 Front Panel..............................................................................................................................................78


5.1.6 Valid Slots...............................................................................................................................................79

5.1.7 Feature Code...........................................................................................................................................79


5.2 SL1Q................................................................................................................................................................81




5.2.4 Front Panel..............................................................................................................................................85


5.2.6 Valid Slots...............................................................................................................................................86

5.2.7 Feature Code...........................................................................................................................................86


5.3 SL4D................................................................................................................................................................88




5.3.4 Front Panel..............................................................................................................................................92


5.3.6 Valid Slots...............................................................................................................................................93

5.3.7 Feature Code...........................................................................................................................................93


6 PDH Boards.................................................................................95



v


6.1 SP3D................................................................................................................................................................95




6.1.4 Front Panel..............................................................................................................................................99

6.1.5 DIP Switches and Jumpers...................................................................................................................102

6.1.6 Valid Slots.............................................................................................................................................102

6.1.7 Feature Code.........................................................................................................................................102

6.1.8 Technical Specifications.......................................................................................................................102

6.2 PL3T..............................................................................................................................................................103

6.2.1 Version Description..............................................................................................................................104

6.2.2 Functions and Features.........................................................................................................................104

6.2.3 Working Principle and Signal Flow......................................................................................................104

6.2.4 Front Panel............................................................................................................................................107


6.2.6 Valid Slots.............................................................................................................................................108

6.2.7 Feature Code.........................................................................................................................................108


7 Auxiliary Boards.........................................................................1107.1 AUX...............................................................................................................................................................110

7.1.1 Version Description...............................................................................................................................111



7.1.4 Front Panel............................................................................................................................................113


7.1.6 Valid Slots.............................................................................................................................................116

7.1.7 Feature Code.........................................................................................................................................116


7.2 FAN................................................................................................................................................................117

7.2.1 Version Description...............................................................................................................................118



7.2.4 Front Panel............................................................................................................................................120

7.2.5 Valid Slots.............................................................................................................................................121


8 Power Boards.............................................................................1238.1 PIU.................................................................................................................................................................123




8.1.4 Front Panel............................................................................................................................................126



vi


8.1.5 Valid Slots.............................................................................................................................................127


8.2 APIU..............................................................................................................................................................127




8.2.4 Front Panel............................................................................................................................................129

8.2.5 Valid Slots.............................................................................................................................................130


9 Filler Panel................................................................................1329.1 Functions........................................................................................................................................................132

9.2 Appearance and Valid Slots...........................................................................................................................132

10 Pluggable Optical Modules........................................................13510.1 Overview......................................................................................................................................................135

10.2 SFP/eSFP Optical Modules..........................................................................................................................137

10.3 XFP Optical Modules...................................................................................................................................139

11 Cables.....................................................................................14111.1 Fiber Jumper................................................................................................................................................141

11.2 DC Power Cable...........................................................................................................................................143

11.3 AC Power Cable...........................................................................................................................................144

11.4 PGND Cable................................................................................................................................................144

11.5 E1/T1 Cable.................................................................................................................................................145

11.6 E3/T3 Cable.................................................................................................................................................150

11.7 Network Cable.............................................................................................................................................151

12 Parameter Settings..................................................................155

A Glossary and Acronyms..............................................................156A.1 Numerics.......................................................................................................................................................157

A.2 A....................................................................................................................................................................157

A.3 B....................................................................................................................................................................160

A.4 C....................................................................................................................................................................161

A.5 D....................................................................................................................................................................164

A.6 E....................................................................................................................................................................166

A.7 F....................................................................................................................................................................168

A.8 G....................................................................................................................................................................170

A.9 H....................................................................................................................................................................171

A.10 I...................................................................................................................................................................172

A.11 J...................................................................................................................................................................173

A.12 L..................................................................................................................................................................173

A.13 M.................................................................................................................................................................175

A.14 N..................................................................................................................................................................177



vii


A.15 O..................................................................................................................................................................178

A.16 P..................................................................................................................................................................179

A.17 Q..................................................................................................................................................................182

A.18 R..................................................................................................................................................................182

A.19 S..................................................................................................................................................................184

A.20 T..................................................................................................................................................................188

A.21 U..................................................................................................................................................................189

A.22 V..................................................................................................................................................................190

A.23 W.................................................................................................................................................................190



viii

OptiX OSN 550 Multi-Service CPE Optical Transmission SystemHardware Description Figures

Figures

Figure 2-1 Slot layout in an OptiX OSN 550 NE...................................................................................................5

Figure 2-2 Bar code...............................................................................................................................................19

Figure 3-1 Functional block diagram of the PCX.................................................................................................28

Figure 3-2 Functional block diagram of the cross-connect unit...........................................................................29

Figure 3-3 Logical slots for a PCX board.............................................................................................................36

Figure 4-1 Front panel of the EF8F......................................................................................................................50

Figure 4-2 Functional block diagram of the EM6T/EM6F...................................................................................58

Figure 4-3 Front panel of the EM6T.....................................................................................................................60

Figure 4-4 Front panel of the EM6F.....................................................................................................................60

Figure 4-5 Functional block diagram of the MD1................................................................................................67

Figure 4-6 Front panel of the MD1.......................................................................................................................69

Figure 5-1 Functional block diagram of the SL1D...............................................................................................76

Figure 5-2 Front panel of the SL1D......................................................................................................................78

Figure 5-3 Functional block diagram of the SL1Q...............................................................................................83

Figure 5-4 Front panel of the SL1Q......................................................................................................................85

Figure 5-5 Functional block diagram of the SL4D...............................................................................................90

Figure 5-6 Front panel of the SL4D......................................................................................................................92

Figure 6-1 Functional block diagram of the SP3D...............................................................................................97

Figure 6-2 Front panel of the SP3D......................................................................................................................99

Figure 6-3 Functional block diagram of the PL3T.............................................................................................105

Figure 6-4 Front panel of the PL3T....................................................................................................................107

Figure 7-1 Functional block diagram of the AUX..............................................................................................112

Figure 7-2 Functional block diagram of the FAN...............................................................................................119

Figure 7-3 Front panel of the FAN......................................................................................................................121

Figure 8-1 Functional block diagram of the PIU................................................................................................125

Figure 8-2 Front panel of the PIU.......................................................................................................................126



ix

OptiX OSN 550 Multi-Service CPE Optical Transmission SystemHardware Description Figures

Figure 8-3 Functional block diagram of the APIU.............................................................................................129

Figure 8-4 Front panel of the APIU....................................................................................................................130

Figure 9-1 Filler panel for the PCX and extended boards..................................................................................133

Figure 9-2 Filler panel for the PIU......................................................................................................................133

Figure 9-3 Filler panel for the APIU...................................................................................................................133

Figure 10-1 SFP/eSFP optical module................................................................................................................136

Figure 10-2 XFP optical module.........................................................................................................................136

Figure 10-3 Label for a pluggable optical module..............................................................................................137

Figure 11-1 LC/PC connector.............................................................................................................................142

Figure 11-2 FC/PC connector.............................................................................................................................143

Figure 11-3 DC power cable...............................................................................................................................143

Figure 11-4 AC power cable...............................................................................................................................144

Figure 11-5 PGND cable.....................................................................................................................................145

Figure 11-6 75-ohm/120-ohm E1/T1 cable.........................................................................................................146

Figure 11-7 Structure of an E3/T3 cable.............................................................................................................150

Figure 11-8 Straight-through cable.....................................................................................................................153

Figure 11-9 Crossover cable...............................................................................................................................153



x

OptiX OSN 550 Multi-Service CPE Optical Transmission SystemHardware Description Tables

Tables

Table 1-1 Description of labels...............................................................................................................................3

Table 1-2 Technical specifications of an OptiX OSN 550 chassis..........................................................................4

Table 2-1 Boards that the OptiX OSN 550 supports...............................................................................................7

Table 2-2 Appearances and dimensions of the boards that the OptiX OSN 550 supports....................................18

Table 3-1 Differences between the five types of PCX finished boards.................................................................21

Table 3-2 Functions and features that the PCX supports......................................................................................22

Table 3-3 Front panel of each PCX finished board...............................................................................................31

Table 3-4 Description of the clock ports, auxiliary ports, and management ports................................................31

Table 3-5 Status explanation for indicators on an Ethernet port...........................................................................32

Table 3-6 Description of the service ports on the PCX.........................................................................................32

Table 3-7 Buttons..................................................................................................................................................33

Table 3-8 Mapping between manufactured boards and their logical boards.........................................................37

Table 3-9 Feature code of the PCX.......................................................................................................................37

Table 3-10 Technical Specifications of the PCX...................................................................................................38

Table 3-11 Specifications of 10GE optical ports of the OptiX OSN 550..............................................................38

Table 3-12 Specifications of OptiX OSN 550's GE optical ports.........................................................................39

Table 3-13 Specifications of OptiX OSN 550's STM-1 optical ports...................................................................39


Table 3-15 Specifications of OptiX OSN 550's STM-16 optical ports.................................................................41

Table 4-1 Functions and features that the EF8F supports.....................................................................................43

Table 4-2 Signal processing in the receive direction of the EF8F.........................................................................48

Table 4-3 Signal processing in the transmit direction of the EF8F.......................................................................49

Table 4-4 Technical Specifications of the EF8F....................................................................................................51

Table 4-5 Specifications of FE optical ports of the OptiX OSN 550....................................................................51

Table 4-6 Functions and features that the EM6T/EM6F supports........................................................................53

Table 4-7 Signal processing in the receive direction of the EM6T/EM6F............................................................58



xi


Table 4-8 Signal processing in the transmit direction of the EM6T/EM6F..........................................................59

Table 4-9 Status explanation for indicators on an Ethernet port...........................................................................61

Table 4-10 Pin assignments for an RJ-45 port in MDI mode................................................................................61

Table 4-11 Pin assignments for an RJ-45 port in MDI-X mode............................................................................62

Table 4-12 Technical specifications of the EM6T/EM6F.....................................................................................63

Table 4-13 Specifications of OptiX OSN 550's Ethernet electrical ports.............................................................63

Table 4-14 Specifications of OptiX OSN 550's GE optical ports.........................................................................64

Table 4-15 Functions and features that the MD1 supports....................................................................................65

Table 4-16 Signal processing in the receive direction of the MD1.......................................................................68

Table 4-17 Signal processing in the transmit direction of the MD1.....................................................................68

Table 4-18 Pin assignments for an Anea 96 port...................................................................................................70

Table 4-19 Feature code of the MD1.....................................................................................................................72

Table 4-20 Specifications of OptiX OSN 550's CES/ATM/IMA service electrical ports.....................................73

Table 5-1 Functions and features that the SL1D supports.....................................................................................75

Table 5-2 Signal processing in the receive direction of the SL1D........................................................................77

Table 5-3 Signal processing in the transmit direction of the SL1D......................................................................77

Table 5-4 Feature code of the SL1D.....................................................................................................................79

Table 5-5 Technical specifications of the SL1D....................................................................................................80

Table 5-6 Specifications of OptiX OSN 550's STM-1 optical ports.....................................................................80

Table 5-7 Functions and features that the SL1Q supports.....................................................................................82

Table 5-8 Signal processing in the receive direction of the SL1Q........................................................................83

Table 5-9 Signal processing in the transmit direction of the SL1Q......................................................................84

Table 5-10 Feature code of the SL1Q...................................................................................................................86

Table 5-11 Technical specifications of the SL1Q..................................................................................................87


Table 5-13 Functions and features that the SL4D supports...................................................................................89

Table 5-14 Signal processing in the receive direction of the SL4D......................................................................91

Table 5-15 Signal processing in the transmit direction of the SL4D....................................................................91

Table 5-16 Feature code of the SL4D...................................................................................................................93

Table 5-17 Technical specifications of the SL4D..................................................................................................94


Table 6-1 Functions and features that the SP3D supports.....................................................................................96

Table 6-2 Signal processing in the receive direction of the SP3D........................................................................97



xii


Table 6-3 Signal processing in the transmit direction of the SP3D.......................................................................98

Table 6-4 Pin assignments for an Anea 96 port...................................................................................................100

Table 6-5 Feature code of the SP3D....................................................................................................................102

Table 6-6 Technical specifications of the SP3D..................................................................................................102

Table 6-7 Specifications of OptiX OSN 550's E1/T1 electrical ports.................................................................102

Table 6-8 Functions and features that the PL3T supports...................................................................................104

Table 6-9 Signal processing in the receive direction of the PL3T......................................................................105

Table 6-10 Signal processing in the transmit direction of the PL3T...................................................................106

Table 6-11 Electrical ports of the PL3T..............................................................................................................107

Table 6-12 Technical specifications of the PL3T................................................................................................108

Table 6-13 Specifications of OptiX OSN 550's E3/T3 electrical ports...............................................................108

Table 7-1 Functions and features that the AUX supports....................................................................................111

Table 7-2 Description of the ports on the AUX...................................................................................................113

Table 7-3 Status explanation for indicators on an Ethernet port.........................................................................115

Table 7-4 Technical specifications of the AUX...................................................................................................116

Table 7-5 Specifications of synchronous data ports supported by the OptiX OSN 550.....................................117

Table 7-6 Specifications of asynchronous data ports supported by the OptiX OSN 550....................................117

Table 7-7 Specifications of orderwire ports supported by the OptiX OSN 550..................................................117

Table 7-8 Outdoor cabinet monitoring ports supported by the OptiX OSN 550.................................................117

Table 7-9 Functions and features that the FAN supports.....................................................................................118

Table 7-10 Adjustment of the fan rotating speed................................................................................................120

Table 7-11 Technical specifications of the FAN..................................................................................................122

Table 8-1 Functions and features that the PIU supports......................................................................................124

Table 8-2 Description of the ports on the PIU.....................................................................................................126

Table 8-3 Technical specifications of the PIU.....................................................................................................127

Table 8-4 Functions and features that the APIU supports...................................................................................128

Table 8-5 Description of the ports on the APIU..................................................................................................130

Table 9-1 Slots valid for a filler panel.................................................................................................................133

Table 10-1 SFP/eSFP Optical Modules That the OptiX OSN 550 Supports.......................................................137

Table 10-2 XFP Optical Modules That the OptiX OSN 550 Supports...............................................................139

Table 11-1 Types of fiber jumpers.......................................................................................................................142

Table 11-2 Power cable specifications................................................................................................................144

Table 11-3 Pin assignments for a 75-ohm 21xE1/T1 cable.................................................................................146



xiii


Table 11-4 Pin assignments for a 120-ohm 21xE1/T1 cable...............................................................................148

Table 11-5 Technical specifications for E1/T1 cables used on the OptiX OSN 550...........................................149

Table 11-6 Pin assignments for an RJ-45 port in MDI mode..............................................................................151

Table 11-7 Pin assignments for an RJ-45 port in MDI-X mode..........................................................................152

Table 11-8 Pin assignments for a straight-through cable....................................................................................153

Table 11-9 Pin assignments for a crossover cable...............................................................................................154

Table 12-1 References for parameter settings on boards that the OptiX OSN 550 supports..............................155



xiv

OptiX OSN 550 Multi-Service CPE Optical Transmission SystemHardware Description 1 Chassis

1 Chassis

The OptiX OSN 550 is a 2U chassis. It can be deployed in a variety of scenarios and on several different types of cabinets and surfaces.

Chassis Structure



1


Chassis Structure and Board Installation Area

Boardinstallation

area

SLOT9

(PIU)

SLOT 7 (CST/CSH)

SLOT 1 (EXT )

SLOT 5 (EXT)

SLOT 3 (EXT)

SLOT 2 (EXT )

SLOT 4 (EXT)

SLOT 6 (EXT)

SLOT 8 (CST/CSH)SLOT

10(PIU) SLOT

11

(FAN)SLOT92

(PIU)

SLOT 7 (PCX)

SLOT 1 (EXT)

SLOT 5 (EXT)

SLOT 3 (EXT)

SLOT 2 (EXT)

SLOT 4 (EXT)

SLOT 6 (EXT)

SLOT 8 (PCX)SLOT91

(PIU)SLOT

93(FAN)

Power supply boards

System control, switching,and timing boards

Extended boards

Fan board

1

2

3

4

1

2

3

4

W

H

D

Installation Mode

The equipment can be deployed in a variety of scenarios and on several different types of cabinets and surfaces.

Cabinet-mounting (ETSI cabinet and 19-inch cabinet)

Wall-mounting

Desk-mounting

Cabinet-mounting (outdoor cabinets)

Description of Labels

Table 1-1 lists the description of the labels on the chassis and the boards in the chassis. The actual labels may be different depending on the configurations of the chassis and boards.



2


Table 1-1 Description of labels

Label Label Name Description

ESD protection label

Indicates that the equipment is sensitive to static electricity.

Grounding label Indicates the grounding position of the chassis.

Fan warning label Indicates that the fan leaves cannot be touched when the fan is rotating.

Power port warning label

Indicates that you must read the operation instructions before connecting a power cable.

合 /格证 QUALIFICATION CARD

华为技术有限公司中国制作MADE IN CHINAHUAWEI TECHNOLOGIES CO.,LTD.

HUAWEI

Qualification card Indicates that the equipment is qualified.

50

RoHS label Indicates that the equipment contains certain hazardous substances specified in RoHS. The equipment needs to be recycled after the environment-friendly use period of 50 years expires.

DC power

AC power

Product nameplate label

Indicates the product name and certification.

Technical Specifications

Table 1-2 lists the technical specifications of an OptiX OSN 550 chassis.



3


Table 1-1 Technical specifications of an OptiX OSN 550 chassis

Item Performance

Dimensions (H x W x D) 88 mm x 442 mm x 220 mm (H x W x D)

Weight (empty chassis with a backplane)

2.80 kg

Power consumption Maximum power consumption: 240 W

Typical power consumption: 142 W



4

OptiX OSN 550 Multi-Service CPE Optical Transmission SystemHardware Description 2 Boards and Their Appearances

2 Boards and Their Appearances

2.1 Board ListThis section describes the boards that the equipment supports. The equipment provides various functions with different boards inserted.

Slot Layout

Figure 2-1 shows the slot layout in an OptiX OSN 550 NE.

Figure 1-1 Slot layout in an OptiX OSN 550 NE

SLOT9

(PIU)

SLOT 7 (CST/CSH)

SLOT 1 (EXT)

SLOT 5 (EXT)

SLOT 3 (EXT)

SLOT 2 (EXT)

SLOT 4 (EXT)

SLOT 6 (EXT)

SLOT 8 (CST/CSH)SLOT10

(PIU) SLOT11

(FAN)Slot92

(PIU)

Slot 7 (PCX)

Slot 1 (EXT)

Slot 5 (EXT)

Slot 3 (EXT)

Slot 2 (EXT)

Slot 4 (EXT)

Slot 6 (EXT)

Slot 8 (PCX)Slot91

(PIU)Slot93

(FAN)

Board List

Table 2-1 lists the boards that the OptiX OSN 550 supports.

Table 1-1 Boards that the OptiX OSN 550 supports

Board Classification

Board Acronym

Board Name

Function Service Type Port Type Valid Slot

System control, switching, and timing

TNM1PCXLX

Cross-connect, timing and line

Supports the 60 Gbit/s packet switching function.

Native Ethernet services

Point-to-point transparently transmitted E-Line

One Ethernet NM port/NM serial port (sharing one RJ45 port)

One

Slots 7 and 8



5



Board Acronym

Board Name


board board Supports the 20 Gbit/s higher order cross-connect capacity, 5 Gbit/s lower order cross-connect capacity.

Performs system communication and control.

service

VLAN-based E-Line service

QinQ-based E-Line service

E-LAN service based on IEEE 802.1d bridges

E-LAN service based on IEEE 802.1q bridges

E-LAN service based on IEEE 802.1ad bridges

ETH PWE3 services

STM-1/STM-4/STM-16 services

STM-1/STM-4/STM-16 SFP optical port. The optical port type can be S-1.1, L-1.1, S-4.1, L-4.1, S-16.1, L-16.1, or L-16.2.

One 10GE (XFP) optical port 10GBASE-LR (LAN)/10GBASE-LW (WAN)/10GBASE-ER (LAN)/10GBASE-EW (WAN)/10GBASE-ZR (LAN)/10GBASE-ZW (WAN)

TNM1PCXX

Cross-connect, timing, system control, and line board


Supports the 20 Gbit/s higher order cross-connect capacity, 5 Gbit/s lower order cross-connect capacity.



Point-to-point transparently transmitted E-Line service






ETH PWE3 services



Slots 7 and 8

TNM1PCXLG



Supports the 20 Gbit/s higher order cross-connect





One STM-1/STM-4/STM-16 SFP optical port. The optical port type can be S-1.1, L-1.1,

Slots 7 and 8



6



Board Acronym

Board Name


capacity, 5 Gbit/s lower order cross-connect capacity.






ETH PWE3 services

STM-1/STM-4/STM-16 services

S-4.1, L-4.1, S-16.1, L-16.1, or L-16.2.

One GE (SFP) optical port 1000BASE-LX/VX/ZX

TNM1PCXGA












ETH PWE3 services



Slots 7 and 8

TNM1PCXGB




Performs









Slots 7 and 8



7



Board Acronym

Board Name


system communication and control.


ETH PWE3 services

Packet processing board

TNM1MD1

32xSmart E1 service processing board

Transmits/Receives E1 signals.

CES E1

ATM/IMA E1

75/120-ohm E1 port Slots 1 to 6

TNM1EM6T

6xRJ45 FE/GE processing board

Transmits/Receives FE/GE service signals and works with the packet switching unit to process the received FE/GE service signals.








ETH PWE3 services

Four FE electrical ports: 10/100BASE-TX

Two GE electrical ports (compatible with FE electrical ports): 10/100/1000BASE-TX

Slots 1 to 6

TNM1EM6F

4xRJ45 and 2xSFP FE/GE processing board

Four FE electrical ports: 10/100BASE-TX

Provides two ports through the SFP module. The types of SFP module include 1000BASE-LX/VX/ZX.

Slots 1 to 6

TNM1EF8F

8xFE Ethernet processing board

Transmits/Receives FE service signals and works with the packet switching unit to process the received FE service signals.








8xFE optical port: 100BASE-FX

Slots 1 to 6



8



Board Acronym

Board Name


ETH PWE3 services

SDH board

TNH2SL1D

2xSTM-1 interface board

Transmits/Receives 2xSTM-1 optical signals.

STM-1 service 2xSTM-1 optical ports Slots 1 to 6

TNH2SL4D



STM-4 service 2xSTM-4 optical ports Slots 1 and 6

TNH2SL1Q



STM-1 service 4xSTM-1 optical ports Slots 1 to 6

PDH board

TNH2SP3D

42xE1/T1 tributary board

Transmits/Receives E1/T1 signals.

E1/T1 service 42x75-/120-ohm E1 ports or 42x100-ohm T1 ports

Slots 1 to 6

TNH2PL3T

3xE3/T3 tributary board

Transmits/Receives E3/T3 signals.

E3/T3 service 3x75-ohm E3/T3 ports Slots 1 to 6

Auxiliary board

TNM1AUX

Auxiliary interface board

Provides the system with one orderwire phone port, one synchronous data port, one asynchronous data port, and one 6-input/2-output external alarm port.

Orderwire phone

Asynchronous data service

One orderwire phone port

One asynchronous data port

One asynchronous data port

4-input/2-output external alarm port

Slots 1 to 6

Power supply board

TND1PIU

Power supply board

Provides one -48 V/-60 V DC power supply.

N/A Provides -48 V/-60 V DC power supply ports.

Slots 91 and 92

TNF1APIU

Power supply board

Connects to 110-220 V AC power supplies.

N/A Provides 100/240 V AC power supply ports.

Slots 2 and 4

Slots 4 and 6 (recommende



9



Board Acronym

Board Name


d)

Fan board

TNM1FAN

Fan board

Cools the NE. N/A N/A Slot 93

2.2 Board AppearanceThis section describes the appearances, dimensions, and bar codes of boards.

Appearances and Dimensions

Table 2-2 lists the appearances and dimensions of the boards that the OptiX OSN 550 supports.

Table 1-1 Appearances and dimensions of the boards that the OptiX OSN 550 supports

Board Type

Board Name

Appearance Dimensions (H x W x D)

System control, switching, and timing board

PCX For example, PCXLX: 22.36 mm x 193.80 mm x 269.73 mm

Packet processing board

MD1/EM6T/EM6F/EF8F

For example, EM6F: 19.82 mm x 193.80 mm x 225.80 mm

SDH board

SL1D/SL4D/SL1Q

For example, SL1D: 19.82 mm x 193.80 mm x 225.80 mm



10


Board Type

Board Name

Appearance Dimensions (H x W x D)

PDH board

SP3D/PL3T

For example, SP3D: 19.82 mm x 193.80 mm x 225.80 mm

Auxiliary board

AUX 19.82 mm x 193.80 mm x 225.80 mm

Power supply board

PIU 21.0 mm x 41.4 mm x 229.9 mm

APIU 21.0 mm x 41.4 mm x 229.9 mm

Fan board FAN 28.5 mm x 86.2 mm x 217.6 mm

Bar Code

The front panel of a board has two ejector levers and two captive screws. The ejector levers help you remove or insert a board. The captive screws fasten a board to the chassis. A board bar code (as shown in Figure 2-2) is attached to one of the ejector levers.



11


Figure 1-1 Bar code

Bar code

2 Internal code34

Board versionBoard nameBoard feature code

1

5

Last six digits of the BOM code

020XES10AA800077-TNM1MD1 A1 2 3 4 5

Only the bar codes of some boards contain feature codes, which further classify boards.



12

OptiX OSN 550 Multi-Service CPE Optical Transmission SystemHardware Description 3 System Control, Switching, and Timing Boards

3 System Control, Switching, and

Timing Boards

3.1 PCXThe PCX is a system control, switching, and timing board. It is available in five types of finished boards.

3.1.1 Version Description

The functional version of the PCX is TNM1. PCX boards are available in five types of finished boards: PCXLX, PCXX, PCXLG, PCXGA, and PCXGB.

3.1.2 Functions and Features

This section describes the functions and features that the PCX supports.

3.1.3 Working Principle and Signal Flow

The PCX consists of the system control and communication unit, packet switching unit, GE/10GE signal access unit, cross-connect unit, line unit, clock unit, and power supply unit.

3.1.4 Front Panel

There are indicators, ports, buttons, and labels on the front panel.

3.1.5 DIP Switches and CF Card

This board has a set of DIP switches and a pluggable CF card.

3.1.6 Valid Slots

The PCX can be inserted in slot 7 (preferred) or slot 8 in the chassis.

3.1.7 Feature Code

The feature code of a board refers to the number next to the board name in the bar code and indicates the type of optical port. PCX boards have feature codes.

3.1.8 Technical Specifications

This section describes the board specifications, including the port performance, dimensions, weight, and power consumption.



13


3.1.1 Version DescriptionThe functional version of the PCX is TNM1. PCX boards are available in five types of finished boards: PCXLX, PCXX, PCXLG, PCXGA, and PCXGB.

Table 3-1 lists the differences between the five types of PCX finished boards.

Table 1-1 Differences between the five types of PCX finished boards

Finished Board

Packet Switching Capability

TDM Cross-Connect Capability

TDM Service Port

Packet Service Port

PCXLX

60 Gbit/s Supports the 20 Gbit/s higher order cross-connect capacity, 5 Gbit/s lower order cross-connect capacity.

One STM-1/STM-4/STM-16 SFP optical port. The optical port type can be S-1.1, L-1.1, S-4.1, L-4.1, S-16.1, L-16.1, or L-16.2.


PCXX

60 Gbit/s None One 10GE (XFP) optical port 10GBASE-LR (LAN)/10GBASE-LW (WAN)/10GBASE-ER (LAN)/10GBASE-EW (WAN)/10GBASE-ZR (LAN)/10GBASE-ZW (WAN)

PCXLG

40 Gbit/s One STM-1/STM-4/STM-16 SFP optical port. The optical port type can be S-1.1, L-1.1, S-4.1, L-4.1, S-16.1, L-16.1, or L-16.2.


PCXGA

20 Gbit/s None One GE (SFP) optical port 1000BASE-LX/VX/ZX

PCXGB

40 Gbit/s None One GE (SFP) optical port 1000BASE-LX/VX/ZX

3.1.2 Functions and FeaturesThis section describes the functions and features that the PCX supports.

Table 3-2 lists the functions and features that the PCX supports.



14


Table 1-2 Functions and features that the PCX supports

Function and Feature Board

Basic functions

Packet switching capability

The PCXLX/PCXX supports 60 Gbit/s packet switching function.

The PCXLG/PCXGB supports 40 Gbit/s packet switching function.

The PCXGA supports 40 Gbit/s packet switching function.

TDM cross-connect capacity


System control and communication

Manages and controls the running status of an NE.

Works as a communication service unit between the NMS and boards to help the NMS to control and manage the NE.

Port types

TDM service port PCXLX/PCXLG: One STM-1/STM-4/STM-16 SFP optical port. The optical port type can be S-1.1, L-1.1, S-4.1, L-4.1, S-16.1, L-16.1, or L-16.2.

PCXX/PCXGB/PCXGA: none

Packet service port PCXLX/PCXX: One 10GE (XFP) optical port 10GBASE-LR (LAN)/10GBASE-LW (WAN)/10GBASE-ER (LAN)/10GBASE-EW (WAN)/10GBASE-ZR (LAN)/10GBASE-ZW (WAN)

PCXLG/PCXGB/PCXGA: One GE (SFP) optical port 1000BASE-LX/VX/ZX

Port attributes

Working mode The GE optical port supports 1000 Mbit/s full-duplex and auto-negotiation.

The 10GE optical port supports 10 Gbit/s full-duplex modes and the setting of LAN mode or WAN mode.

TAG attributes The TAG attribute can be set to tag aware, access, or hybrid.

Sets and queries the TAG attribute of an Ethernet port.

Traffic control function

Supports the port-based traffic control function that complies with IEEE 802.3x.

Clock Clock synchronization at the physical layer

Provides the system clock and frame headers for service signals and overhead signals for the other boards when tracing an appropriate clock source.

The traced clock source can be any of the following:

External clock

SDH line clock

PDH tributary clock

Synchronous Ethernet clock



15



Clock protection Supports the following clock protection schemes:

Protection based on clock source priorities

Protection by running the SSM protocol

Protection by running the extended SSM protocol

DCN Outband DCN Mode 1: 32 DCCs that are composed of D1-D3 bytes

Mode 2: 12 DCCs that are composed of D1-D3 bytes or six DCCs that are composed of D4-D12 bytes

Inband DCN Supports the inband DCN function. The DCN bandwidth is configurable.

MPLS functions The packet switching unit of the PCX works with its service interface unit or a service board to implement MPLS functions.

Setup mode: static LSPs

Protection: 1:1 MPLS tunnel APS

OAM:

− Supports MPLS OAM that complies with ITU-T Y.1711 and DM/PDV functions that comply with ITU-T Y.1731.

− Supports LSP ping and LSP traceroute functions.

PWE3 functions The packet switching unit of the PCX works with its service interface unit or a service board to implement PWE3 functions.

Service categories

− TDM PWE3 (CES) services

− ATM PWE3 services

− ETH PWE3 services

Setup mode: static PWs

Protection: 1:1 PW APS

OAM:

− Support the ping and traceroute commands of PWs, the virtual circuit connectivity verification (VCCV) command.

− Supports PW OAM that complies with ITU-T Y.1711 and LM/DM/PDV functions that comply with ITU-T Y.1731.

Supports MS-PWs.



16



Ethernet service functions (for PCXLX/PCXX/PCXLG/PCXGB boards)








ETH PWE3 services

Format of Ethernet data frames: IEEE 802.3 and Ethernet II

Jumbo frames

MTU length: 1518 bytes to 9600 bytes (1620 bytes, by default)

MPLS function support

VLAN function support. The VLAN IDs range from 1 to 4094.

QinQ support

Size of a MAC address table: 16 KB (including static entries)

SDH service functions (for PCXLX/PCXLG boards)

Processes STM-1/4/16 services.

Protection scheme 1+1 hot standby

TDM protection schemes (for PCXLX/PCXLG boards)

Sub-network connection protection (SNCP)

Supports SNCP at the STM-1, STM-4, and STM-16 levels.

The switching duration does not exceed 50 ms.

ring multiplex section protection (MSP)

Supports ring MSP at the STM-1, STM-4, and STM-16 levels.


Linear MSP Supports linear MSP at the STM-1, STM-4, and STM-16 levels.


Packet protection schemes

MSTP Supports the MSTP protocol that generates only the CIST. The MSTP protocol provides functions equivalent to that of the RSTP protocol.

LAG Intra-board LAG and inter-board LAG

A maximum of 16 LAGs. Each LAG has a maximum of 8 members.

Switching duration not more than 500 ms

LPT Point-point and point-multipoint LPT

Switching duration not more than 5s



17



Maintenance features Supports the following IEEE 802.1ag OAM functions:

− Management of OAM maintenance points

− Continuity check (CC)

− Loopback (LB)

− Link trace (LT)

Supports the following IEEE 802.3ah OAM functions:

− OAM auto-discovery

− Link performance monitoring

− Fault detection

− Loopback at the remote end

− Self-loop detection and self-looped port blocking

Number of MD/MA/MEP: 64

Warm reset and cold reset

In-service FPGA loading

Board manufacturing information query

Board temperature detection

Board voltage detection

Detection of indicators on the other boards

Pluggable CF card



18



QoS functions The packet switching unit of the PCX works with its service interface unit or a service board to implement QoS functions.

DiffServ

Supports simple traffic classification by specifying PHB service classes for service flows based on their QoS information (C-VLAN priorities, S-VLAN priorities, DSCP values, or MPLS EXP values) carried by the packets.

Complex traffic classification

Supports traffic classification based on C-VLAN IDs, S-VLAN IDs, C-VLAN priorities, S-VLAN priorities, C-VLAN IDs + C-VLAN priorities, S-VLAN IDs + S-VLAN priorities, or DSCP values carried by packets.

CAR

Provides the CAR function for the traffic flows at ports.

Shaping

Supports traffic shaping for a specific port, prioritized queue, or traffic flow.

Queue scheduling policies

− SP

− WRR

− SP+WRR

3.1.3 Working Principle and Signal FlowThe PCX consists of the system control and communication unit, packet switching unit, GE/10GE signal access unit, cross-connect unit, line unit, clock unit, and power supply unit.



19


Functional Block Diagram

Figure 1-1 Functional block diagram of the PCX

Backplane

Powersupply

unit

Clock unit

Control bus

Packetswitching unit

GE/10GEsignal

access unit

Dataservice

GE/10GE signal

GE/10GE signal

Cross-connect unit

TDM serviceService boardSTM-1/4/16 signal

Line unit

Ethernet NM portNM serial port

System control andcommunication unit

+3.3 V power supplied to other boards

+12 V power supplied to fans

-48 V1 (DC power input)

-48 V2 (DC power input)

-53.5 V (AC power input)

Power supplied to theother units on the board

Clock signalprovided to theother units onthe board

Clock signalreceived from

the service uniton the board

Clock signal receivedfrom other boards

Clock signal providedto other boards

Service board

System Control and Communication Unit

The system control and communication unit consists of the CPU unit and logic control unit. The system control and communication unit performs the following functions:

The CPU unit performs the following control functions using the control bus:

− Manages other boards and the other units on the PCX, and collects alarms and performance events.

− Implements software loading by reading information from the CF card.

The CPU unit processes network management messages in DCCs using the logic control unit.

The CPU unit communicates with the NMS by its Ethernet NM port.

The logic control unit decodes the address read/write signals from the CPU unit and enables FPGA loading.

The logic control unit cross-connects the overheads between the auxiliary interface unit, the CPU unit, and other boards. This helps to achieve the following purposes:

− Adding or dropping DCC information processed by the CPU unit

− Adding or dropping orderwire and synchronous/asynchronous data services

− Exchanging the orderwire bytes, DCC bytes, and K bytes between different lines



20


The system control and communication unit on a PCX board communicates with the system control and communication unit on the standby PCX board by carrying FE signals over the communication bus in the backplane. In this manner, the active and standby PCX boards form a 1+1 hot backup relationship.

Packet Switching Unit

The packet switching unit grooms services and processes protocols for Ethernet services.

After receiving Ethernet services from an Ethernet board, the packet switching unit grooms the Ethernet services based on the configurations that are delivered by the system control and communication unit.

After receiving protocol packets from an Ethernet board, the packet switching unit transmits the protocol packets to the system control and communication unit for processing. After processing, the system control and communication unit sends the protocol packets back to the packet switching unit. The packet switching unit transmits the protocol packets to the Ethernet board.

Cross-Connect Unit

The cross-connect unit grooms services over the entire system using the higher order cross-connect module and the lower order cross-connect module. Figure 3-2 shows the functional block diagram of the cross-connect unit.

Figure 1-1 Functional block diagram of the cross-connect unit

Source TDMservice unit Higher order

cross-connectmoduleHOXC

Lower ordercross-connect

moduleLOXC

Sink TDMservice unit

The source TDM service unit transmits VC-4 signals to the higher order cross-connect module over VC-4 buses. If the VC-4 signals carry only VC-4 services, the higher order cross-connect module processes the VC-4 signals and then transmits the signals to the sink TDM service unit. If the VC-4 signals include VC-12 or VC-3 services, the higher order cross-connect module grooms the VC-12 or VC-3 services to the lower order cross-connect module. The lower order cross-connect module processes the VC-12 or VC-3 services and then transmits the services back to the higher order cross-connect module. The higher order cross-connect module processes the services and then transmits the services to the sink TDM service unit.



21


Clock Unit The clock unit selects an appropriate clock source from service clock sources at service

ports based on clock priorities. Locking the clock source by means of the phase-locked loop, the clock unit provides the system clock to other units on the PCX and other boards.

The clock units on the active and standby PCX boards transmit clock signals to each other.

GE/10GE Signal Access Unit

The GE/10GE signal access unit allows access of one GE/10GE optical signals and works with the Layer 2 switching unit to provide Layer 2 switching functions.

In the receive direction: After performing O/E conversion, restructuring, decoding, and serial/parallel conversion for GE/10GE optical signals, the GE/10GE signal access unit extracts framed GE/10GE signals by delimiting frames and adding preambles. The GE/10GE signal access unit also performs CRC checks and Ethernet performance measurement.

In the transmit direction: After delimiting frames, adding preambles, calculating CRC codes, and measuring Ethernet performance, the GE/10GE signal access unit performs parallel/serial conversion and encoding and then transmits GE/10GE signals to the GE/10GE optical port after performing E/O conversion.

Line Unit

The line unit performs the following functions: STM-1/STM-4/STM-16 signal receiving, serial/parallel conversion, clock signal extraction, data restoration, overhead processing, alarm monitoring/reporting, signal inloops/outloops, MSP, and ALS functions.

Power Supply Unit

The power supply unit performs the following functions:

Combines two -48 V DC power supplies or receives one -53.5 V AC power supply, and converts the supplied power into the power supply required by the chips of the other units on the local board.

Combines two -48 V DC power supplies or receives one -53.5 V AC power supply, and converts the supplied power into the +3.3 V power supply required by other boards.

Combines two -48 V DC power supplies or receives one -53.5 V AC power supply, and converts the supplied power into the +12 V power supply required by the fan.

3.1.4 Front PanelThere are indicators, ports, buttons, and labels on the front panel.

Front Panel Diagram

Table 3-3 shows the front panel of each PCX finished board.



22


Table 1-1 Front panel of each PCX finished board

Finished Board

Front Panel Diagram

PCXLX

CLASS1LASER

PRODUCT

NMS 1/COM EXTRSTS

TA

TP

RO

GS

YN

CS

RV

AC

TL

OS

L/A

PC

X

TX / RXTX/RX

PCXXCLASS1LASER

PRODUCT

NMS 1/COM EXTRSTS

TA

TP

RO

GS

YN

CS

RV

AC

T

L/A

PC

X

TX / RX

PCXLG

CLASS1LASER

PRODUCT

NMS 1/COM EXTRSTS

TA

TP

RO

GS

YN

CS

RV

AC

TL

OS

L/A

PC

X

TX/RXTX/RX

PCXGA

CLASS1LASER

PRODUCT

NMS 1/COM EXTRSTS

TA

TP

RO

GS

YN

CS

RV

AC

T

L/A

PC

X

TX/RX

PCXGB

CLASS1LASER

PRODUCT

NMS 1/COM EXTRSTS

TA

TP

RO

GS

YN

CS

RV

AC

T

L/A

PC

X

TX/RX

Indicators

The front panel of the PCX has the following indicators: STAT, PROG, SYNC, SRV, ACT, LOS, and L/A. For status explanation for the indicators, see Indicator Status Explanation.



23


Clock Ports, Auxiliary Ports, and Management Ports

Table 1-1 Description of the clock ports, auxiliary ports, and management ports

Port Description

Connector Type

Pin Assignment Required Cable

NMS/COM

Ethernet NM port/NM serial port

RJ45

8 7 6 5 4 3 2 1

For status explanation for the indicators of an RJ45 port, see Table 3-5.

Pin 1: transmitting data (+)

Pin 2: transmitting data (-)

Pin 3: receiving data (+)

Pin 4: grounding end of the NM serial port

Pin 5: receive end of the NM serial port

Pin 6: receiving data (-)

Pin 7: not defined

Pin 8: transmit end of the NM serial port

11.7 Network Cable

EXT Reserved - - -

Table 1-2 Status explanation for indicators on an Ethernet port

Indicator State Meaning

LINK (green) On The Ethernet link is working properly.

Off The Ethernet link is interrupted.

ACT (yellow) On or blinking The port is receiving or transmitting data.

Off The port is not receiving or transmitting data.

Service Ports

Table 1-1 Description of the service ports on the PCX

Board

Port Description

Connector Type Pin Assignment

Required Cable

PCXLX/PCXX

TX/RX

10GE optical port

Optical port: LC SFP optical module

TX represents the transmit port.

11.1 Fiber Jumper



24


Board

Port Description


Required Cable

TX RX

RX represents the receive port.

PCXLG/PCXGA/PCXGB

TX/RX

GE optical port

PCXLX/PCXLG

TX/RX

STM-1/4/16 optical port

Buttons

Table 1-1 Buttons

Button Name Description

RST Warm reset button After this button is pressed, a warm reset is performed on the board.

Labels

There is a laser safety class label on the front panel.

The laser safety class label CLASS 1 indicates that the maximum launched optical power of the optical port is lower than 10 dBm (10 mW).

3.1.5 DIP Switches and CF CardThis board has a set of DIP switches and a pluggable CF card.

CF Card

NE databases, system parameters (including NE-IP, NE-ID, and subnet mask), software packages, and NE logs are stored on the CF card. To synchronize the NE databases, system parameters, and NE logs on the PCX board to the CF card, enable the regular backup function.

The software packages on the CF card are synchronized with those on the PCX board during package diffusion. Therefore, automatic backup mechanisms or manual operations are not needed to synchronize software packages on the PCX board and the CF card.



25


Positions of the DIP Switches and CF Card

3

12

ON DIP

1 2 3 4

1. DIP switches 2. CF card 3. Daughter board

Meanings of DIP Switch Settings

Setting of DIP Switchesa Meaning

1 2 3 4

0 0 0 0 Indicates that the board works with the watchdog enabled.

0 0 0 1 The value is reserved.

0 0 1 0 Indicates that a memory self-check is running.

0 0 1 1 Indicates that the board is being debugged.

0 1 0 0 Indicates that the board works with the watchdog disabled and a full memory check is running.

0 1 0 1 Indicates the BIOS holdover state.

0 1 1 0 Indicates the BIOS exhibition state.



26


Setting of DIP Switchesa Meaning

1 2 3 4

0 1 1 1 The value is reserved. (By default, this value indicates that the board works with the watchdog enabled.)

1 0 0 0 Indicates that the equipment is being tested and the NE software is started directly without a self-check.

1 0 0 1 Restores the data of the CF card.

1 0 1 0 Erases data in the system parameter area.

1 0 1 1 Erases databases.

1 1 0 0 Erases NE software, including patches.

1 1 0 1 Erases databases and NE software (including patches).

1 1 1 0 Erases all data in the file system.

1 1 1 1 Formats the flash file system, and erases data in the system parameter area and extended BIOS, with basic BIOS reserved.

NOTEa: When a DIP switch is set to the side with the numbers "1, 2, 3, 4", it represents binary digit 1. When a DIP switch is set to the side with the letters "ON DIP", it represents binary digit 0.

3.1.6 Valid SlotsThe PCX can be inserted in slot 7 (preferred) or slot 8 in the chassis.

Figure 3-3 shows the mapping between physical slots and their logical slots. Physical slot 7 has the following logical slots on the NMS: slot 7, slot 9, slot 81, slot 83, and slot 85; physical slot 8 has the following logical slots on the NMS: slot 8, slot 10, slot 82, slot 84, and slot 86.



27


Figure 1-1 Logical slots for a PCX board

SLOT9

SLOT 7 (CST/CSH)

SLOT 1 (EXT

)

SLOT 5 (EXT)

SLOT 3 (EXT)

SLOT 2 (EXT

)

SLOT 4 (EXT)

SLOT 6 (EXT)

SLOT 8 (CST/CSH)10

(PIU)

SLOT11

(FAN)

Slot 92

(PIU)

Slot 81 (SCC)

Slot 1 (EXT)

Slot 5 (EXT)

Slot 3 (EXT)

Slot 2 (EXT)

Slot 4 (EXT)

Slot 6 (EXT)

Slot 8 Slot 91

(PIU)Slot 93

(FAN)

Slot 7 Slot 83Slot 85 (STG)

Slot 82 (SCC)

Slot 84Slot 86 (STG)

Slot 9 Slot 10

The board that can be created in a logical slot varies according to the manufactured board that is installed in a physical slot. Table 3-8 provides the mapping between manufactured boards and their logical boards.

Table 1-1 Mapping between manufactured boards and their logical boards

Manufactured Board

Logical Slot 7/8

Logical Slot 9/10

Logical Slot 81/82

Logical Slot 83/84

Logical Slot 85/86

PCXLX SL16S/SL4S/SL1S

PEX1 SCC PUXC STG

PCXX - PEX1 SCC PUXC STG

PCXLG SL16S/SL4S/SL1S

PEG1 SCC PEXC STG

PCXGB - PEG1 SCC PEXC STG

PCXGA - PEG1 SCC PGXC STG

3.1.7 Feature CodeThe feature code of a board refers to the number next to the board name in the bar code and indicates the type of optical port. PCX boards have feature codes.

Table 1-2 Feature code of the PCX

Feature Code Port Type

TNM1PCXLX01 1x10GE (XFP)/1xSTM-1 (ESFP, S-1.1, LC)

TNM1PCXLX02 1x10GE (XFP)/1xSTM-1 (ESFP, L-1.1, LC)

TNM1PCXLX03 1x10GE (XFP)/STM-4 (ESFP, S-4.1, LC)

TNM1PCXLX04 1x10GE (XFP)/STM-4 (ESFP, L-4.1, LC)

TNM1PCXLX05 1x10GE (XFP)/STM-16 (ESFP, S-16.1, LC)



TNM1PCXLG01 1xGE (SFP)/STM-1 (ESFP, S-1.1, LC)



28


Feature Code Port Type

TNM1PCXLG02 1xGE (SFP)/STM-1 (ESFP, L-1.1, LC)






3.1.8 Technical SpecificationsThis section describes the board specifications, including the port performance, dimensions, weight, and power consumption.

Table 3-10 lists the technical specifications of the PCX.

Table 1-3 Technical Specifications of the PCX

Item Performance

Auxiliary ports and management ports

NMS/COM Ethernet NM port/NM serial port

Not involved

EXT Reserved Not involved

Service ports

TX/RX (PCXLX/PCXX)

10GE optical port Table 3-11

TX/RX (PCXLG/PCXGB)

GE optical port Table 3-12

TX/RX (PCXLX/PCXLG)

STM-1/4/16 optical port

See Table 3-13, Table 3-14, and Table 3-15.

Dimensions (H x W x D) 22.36 mm x 193.80 mm x 269.73 mm

Weight 0.80 kg

Power consumption 45 W



29


Table 1-4 Specifications of 10GE optical ports of the OptiX OSN 550

Item Performance

Optical port type 10GBASE-LR (LAN) 10GBASE-LW (WAN)

10GBASE-ER (LAN) 10GBASE-EW (WAN)

10GBASE-ZR (LAN) 10GBASE-ZW (WAN)

Optical fiber type Single-mode LC Single-mode LC Single-mode LC

Transmission distance (km)

10 40 80

Operating wavelength (nm)

1260 to 1330 1530 to 1565 1530 to 1565

Mean launched power (dBm)

-6 to -1 -1 to +2 0 to 4

Receiver minimum sensitivity (dBm)

-11 -15 -24

Minimum overload (dBm)

0.5 -1 -7

Minimum extinction ratio (dB)

6 8.2 9

Table 1-5 Specifications of OptiX OSN 550's GE optical ports

Item Value

Nominal bit rate (Mbit/s)

1000

Optical port type 1000BASE-LX 1000BASE-VX 1000BASE-ZX



10 40 80


1270 to 1355 1270 to 1355 1500 to 1580


-9 to -3 -5 to 0 -2 to +5


-20 -23 -23


-3 -3 -3



30


Item Value


9 9 9

Table 1-6 Specifications of OptiX OSN 550's STM-1 optical ports

Item Value

Nominal bit rate 155520 kbit/s

Optical port type S-1.1 L-1.1


2 to 15 20 to 40

Operating wavelength range (nm)

1261 to 1360 1263 to 1360

Optical fiber type Single-mode LC Single-mode LC

Launched optical power range (dBm)

-15 to -8 -5 to 0

Receiver sensitivity (dBm)

-28 -34


-8 -10


8.2 10

NOTEFormat of optical port type is defined as follows: transmission distance-signal rate.fiber type

Explanation for optical port type "S-1.1" is as follows: "S" represents short distance; the first digit "1" represents STM-1 signals; the second digit "1" represents ITU-T G.652 fibers (1310 nm).

Explanation for optical port type "L-1.1" is as follows: "L" represents long distance; the first digit "1" represents STM-1 signals; the second digit "1" represents ITU-T G.652 fibers (1310 nm).


Item Value


Optical port type S-4.1 L-4.1


2 to 15 20 to 40


1274 to 1356 1280 to 1335



31


Item Value

Optical fiber type Single-mode LC Single-mode LC


-15 to -8 -3 to +2


-28 -28


-8 -8


8.2 10





Item Value


Optical port type S-16.1 L-16.1 L-16.2


2 to 15 20 to 40 50 to 80


1274 to 1356 1280 to 1335 1500 to 1580



-5 to 0 -2 to +3 -2 to +3


-18 -27 -28


0 -9 -9


8.2 8.2 8.2



32


Item Value


Explanation for optical port type "S-16.1" is as follows: "S" represents short distance; the first two digits "16" represent STM-16 signals; the third digit "1" represents ITU-T G.652 fibers (1310 nm).

Explanation for optical port type "L-16.1" is as follows: "L" represents long distance; the first two digits "16" represent STM-16 signals; the third digit "1" represents ITU-T G.652 fibers (1310 nm).

Explanation for optical port type "L-16.2" is as follows: "L" represents long distance; the first two digits "16" represent STM-16 signals; the third digit "2" represents ITU-T G.652 fibers (1550 nm).



33

OptiX OSN 550 Multi-Service CPE Optical Transmission SystemHardware Description 4 Packet Processing Boards

4 Packet Processing Boards

4.1 EF8FThe EF8F is an FE processing board.


The functional version of the EF8F is TNM1.


The EF8F receives/transmits, processes, and converges 8xFE signals.


This section describes the working principle and signal flow of the EF8F.

4.1.4 Front Panel

There are indicators and ports on the front panel.

4.1.5 DIP Switches and Jumpers

None.

4.1.6 Valid Slots

The EF8F can be inserted in slots 1-6. The slot allocation priority is as follows: slots 4 and 6 > slots 1 and 2 > slots 3 and 5. The logical slots of the EF8F on the NMS are the same as its physical slots.

4.1.7 Feature Code

None.



4.1.1 Version DescriptionThe functional version of the EF8F is TNM1.



34


4.1.2 Functions and FeaturesThe EF8F receives/transmits, processes, and converges 8xFE signals.

Table 4-1 lists the functions and features that the EF8F supports. The EF8F needs to work with the packet switching unit of the system control, switching, and timing board to implement Ethernet service functions.

Table 1-9 Functions and features that the EF8F supports


Basic functions Receives/Transmits FE service signals and works with the packet switching unit to process the received FE service signals.

Backplane bus bandwidth 1.25 Gbit/s

Port type FE optical port: 100BASE-FX, supporting single-fiber bidirectional optical modules

Port attributes

Working mode The FE optical port supports 100M full-duplex.



Traffic control function Supports the port-based traffic control function that complies with IEEE 802.3x.

MPLS functions The EF8F works with the PCX board to implement MPLS functions.



OAM:

− Supports MPLS OAM that complies with ITU-T Y.1711.




35



PWE3 functions The EF8F works with the PCX board to implement PWE3 functions.

Service categories: ETH PWE3 services



OAM:

− Supports VCCV.

− Supports PW OAM that complies with ITU-T Y.1711.

− Supports PW ping and PW traceroute functions.

Supports MS-PWs.

Service categories








ETH PWE3 services


Jumbo frames




QinQ support

Protection features



Each LAG has a maximum of 8 members




Clock Clock source Synchronous Ethernet clock



36







DCN Each FE port provides one inband DCN channel.




− Loopback (LB)

− Link trace (LT)




− Fault detection




Inloops at the PHY/MAC layer of Ethernet ports

Warm resets and cold resets (with warm resets having no impact on services)




SFP module information query

Ethernet performance monitoring (RMON)

Hot board swapping

Hot swapping for pluggable optical modules



37



QoS DiffServ




CAR


Shaping



− SP

− WRR

− SP+WRR

4.1.3 Working Principle and Signal FlowThis section describes the working principle and signal flow of the EF8F.



38



FE signal

access unitL2 switching

unit

Dual-fed andselective-

receiving unit

Control logicprocessing unit

Clock unit

Backplane

Control bus of the board

System control and

communication unit

Packet switching unit

FE signal

Ethernet

signal

Ethernet

signal

Control bus

Control signal

System clock signal

+3.3 V

Clock signal provided to theother units on the board

+3.3 V backup powersupplied to the board

Powersupply unit

+3.3 V power suppliedto the board

-48 V1(DC power input)-48 V2(DC power input)-53.5 V(AC power input)

Signal Processing in the Receive Direction

Table 1-1 Signal processing in the receive direction of the EF8F

Step

Function Unit

Processing Flow

1 FE signal access unit

Receives and transmits FE signals.

Performs restructuring, decoding, and serial/parallel conversion for FE signals.

Performs frame delimitation, preamble stripping, CRC checks, and Ethernet performance measurement for frame signals.

2 L2 switching unit

Adds tags identifying ingress ports to Ethernet data frames.

Processes VLAN tags in Ethernet data frames.

Processes labels in MPLS/PWE3 packets.

Performs QoS processing such as traffic classification and CAR traffic monitoring for Ethernet data frames.

Forwards Ethernet data frames to the logic processing unit.

3 Dual-fed and selective-receiving unit

Transmits Ethernet data frames to the active and standby packet switching units.



39


Signal Processing in the Transmit Direction

Table 1-1 Signal processing in the transmit direction of the EF8F

Step Function Unit Processing Flow


Selects Ethernet data frames from the packet switching unit.

Transmits Ethernet data frames to the Ethernet processing unit.

2 L2 switching unit Processes labels in MPLS/PWE3 packets.


Performs QoS processing such as traffic shaping and queue scheduling for Ethernet data frames.

Forwards Ethernet data frames to specific egress ports based on egress tags contained in the Ethernet data frames.

3 FE signal access unit Performs frame delimitation, preamble addition, CRC code computing, and Ethernet performance measurement.

Performs parallel/serial conversion and coding for Ethernet data frames, and sends out the generated FE signals through Ethernet ports.

Control Signal Processing

The L2 switching unit controls the FE signal access unit by using management control signals.

The control logic processing unit controls the L2 switching unit and the dual-fed and selective-receiving unit over the control bus on the board.

The control logic processing unit communicates with the active and standby system control and communication units over the system control bus. Specifically, the logic control unit transmits the configuration data and query commands from the system control and communication unit to various units of the board; it also transmits the command responses, alarms, and performance events reported by units on the board to the system control and communication unit.

Power Supply Unit


Receives two -48 V DC power supplies or one -53.5 V AC power supply from the backplane, converts the supplied power into +3.3 V power by using the DC-DC unit, and then supplies the +3.3 V power to the other units on the board.

Receives one +3.3 V power supply from the backplane, which functions as a +3.3 V power backup for the other units on the board.



40


Clock Unit

This unit receives the system clock from the control bus in the backplane and provides clock signals to the other units on the board.

4.1.4 Front PanelThere are indicators and ports on the front panel.

Front Panel Diagram

Figure 4-1 shows the front panel of the EF8F.

Figure 1-1 Front panel of the EF8F

EF

8F

OUT1 IN1

ST

AT

SR

VL/

A1

L/A

2L/

A3

L/A

4L/

A5

L/A

6L/

A7

L/A

8

OUT2 IN2 OUT3 IN3 OUT4 IN4 OUT5 IN5 OUT6 IN6 OUT7 IN7 OUT8 IN8

Indicators

The front panel of the EF8F has the following indicators: STAT, SRV, L/A1, L/A2, L/A3, L/A4, L/A5, L/A6, L/A7, and L/A8. For status explanation for the indicators, see Indicator Status Explanation.

Ports

Port Description


Required Cable

IN1-IN8

Input ports for the first to eighth FE optical signals

LC SFP optical module

TX RX



11.1 Fiber Jumper

OUT1-OUT8

Output ports for the first to eighth FE optical signals

4.1.5 DIP Switches and JumpersNone.



41


4.1.6 Valid SlotsThe EF8F can be inserted in slots 1-6. The slot allocation priority is as follows: slots 4 and 6 > slots 1 and 2 > slots 3 and 5. The logical slots of the EF8F on the NMS are the same as its physical slots.

4.1.7 Feature CodeNone.


Table 4-4 lists the technical specifications of the EF8F.

Table 1-1 Technical Specifications of the EF8F

Item Performance

Service ports For the specifications of the FE optical port, see Table 4-5.

Dimensions (H x W x D)

19.82 mm x 193.80 mm x 225.80 mm

Weight 0.55 kg

Power consumption 23 W

Table 1-2 Specifications of FE optical ports of the OptiX OSN 550

Item Value

Optical port type 100Base-FX 100Base-FX 100Base-FX

Optical fiber type

Single-mode LC Single-mode LC Single-mode LC


15 40 80


1261 to 1360 1263 to 1360 1480 to 1580


-15 to -8 -5 to 0 -5 to 0


-28 -34 -34


-8 -10 -10



42


Item Value


8.2 10 10

4.2 EM6T/EM6FThe EM6T/EM6F is an FE/GE processing board.


The functional version of the EM6T/EM6F is TNM1.


The EM6T/EM6F receives/transmits, processes, and converges four FE signals and two GE signals.


This section describes the working principle and signal flow of the EM6T/EM6F.

4.2.4 Front Panel

There are indicators, FE service ports, and GE service ports on the front panel.


None.

4.2.6 Valid Slots

The EM6T/EM6F can be inserted in slots 1-6. The slot allocation priority is as follows: slots 4 and 6 > slots 1 and 2 > slots 3 and 5. The logical slots of the EM6T/EM6F on the NMS are the same as its physical slots.

4.2.7 Feature Code

None.



4.2.1 Version DescriptionThe functional version of the EM6T/EM6F is TNM1.

4.2.2 Functions and FeaturesThe EM6T/EM6F receives/transmits, processes, and converges four FE signals and two GE signals.



43


Table 4-6 lists the functions and features that the EM6T/EM6F supports. The EM6T/EM6F needs to work with the packet switching unit of the system control, switching, and timing board to implement Ethernet service functions.

Table 1-3 Functions and features that the EM6T/EM6F supports


EM6T EM6F

Basic functions Receives/Transmits FE/GE service signals and works with the packet switching unit to process the received FE/GE service signals.

Backplane bus bandwidth 2.5 Gbit/s

Port specifications

FE electrical port Provides four 10/100BASE-T(X) ports.

GE port Provides two 10/100/1000BASE-T(X) ports (fixed).

Provides two GE ports by using SFP modules of the following types:

1000BASE-LX

1000BASE-VX

1000BASE-ZX

The GE optical port supports single-fiber bidirectional optical modules.

Port attributes Working mode The FE port supports 10M full-duplex, 10M half-duplex, 100M full-duplex, 100M half-duplex, and auto-negotiation.

The GE electrical port supports 10M full-duplex, 10M half-duplex, 100M full-duplex, 100M half-duplex, 1000M full-duplex, and auto-negotiation.

The GE optical port supports 1000M full-duplex and auto-negotiation.



Traffic control function Supports the port-based traffic control function that complies with IEEE 802.3x.



44



EM6T EM6F

MPLS functions The EM6T/EM6F works with the packet switching unit of the PCX board to implement MPLS functions.



OAM:

− Supports MPLS OAM that complies with ITU-T Y.1711.


PWE3 functions The EM6T/EM6F works with the packet switching unit of the PCX board to implement PWE3 functions.

Service categories: ETH PWE3 services



OAM:



Supports MS-PWs.

Service categories








ETH PWE3 services


Jumbo frames




QinQ support



45



EM6T EM6F

Protection features



Each LAG has a maximum of 8 members.




Clock Clock source Synchronous Ethernet clock

Synchronous Ethernet clock (not supported by SFP electrical modules)





DCN Each FE/GE port provides one inband DCN channel.



46



EM6T EM6F




− Loopback (LB)

− Link trace (LT)




− Fault detection




Inloops at the PHY/MAC layer of Ethernet ports





SFP module information query

Ethernet performance monitoring (RMON)

Hot board swapping

Hot swapping for pluggable optical modules



47



EM6T EM6F

QoS DiffServ




CAR


Shaping



− SP

− WRR

− SP+WRR

4.2.3 Working Principle and Signal FlowThis section describes the working principle and signal flow of the EM6T/EM6F.



48



Figure 1-1 Functional block diagram of the EM6T/EM6F

GE signal

access unit

FE signal

access unit

L2 switchingunit

Dual-fed andselective-

receiving unit

Control logicprocessing unit

Clock unit

Backplane

Control bus of the board

System control and

communication unit


GE signal

FE signal

Ethernet

signal

Ethernet

signal

Control bus

Control signal

Control signal

System clock signal

+3.3 V



Powersupply unit

+3.3 V powersupplied to the board



Table 1-1 Signal processing in the receive direction of the EM6T/EM6F

Step Functional Unit

Processing Flow

1 GE signal access unit/FE signal access unit

Receives and transmits GE/FE signals.

Performs restructuring, decoding, and serial/parallel conversion for GE/FE signals.

Performs frame delimitation, preamble stripping, CRC checks, and Ethernet performance measurement for frame signals.



49


Step Functional Unit

Processing Flow

2 L2 switching unit Adds tags identifying ingress ports to Ethernet data frames.


Processes labels in MPLS/PWE3 packets.

Performs QoS processing such as traffic classification and CAR traffic monitoring for Ethernet data frames.

Forwards Ethernet data frames to the logic processing unit.


Transmits Ethernet data frames to the active and standby packet switching units.


Table 1-1 Signal processing in the transmit direction of the EM6T/EM6F



Selects Ethernet data frames from the packet switching unit.

Transmits Ethernet data frames to the Ethernet processing unit.

2 L2 switching unit Processes labels in MPLS/PWE3 packets.


Performs QoS processing such as traffic shaping and queue scheduling for Ethernet data frames.

Forwards Ethernet data frames to specific egress ports based on egress tags contained in the Ethernet data frames.

3 GE signal access unit/FE signal access unit

Performs frame delimitation, preamble addition, CRC code computing, and Ethernet performance measurement.

Performs parallel/serial conversion and coding for Ethernet data frames, and sends out the generated GE/FE signals through Ethernet ports.


The L2 switching unit controls the FE/GE signal access unit by using management control signals.

The control logic processing unit controls the L2 switching unit and the dual-fed and selective-receiving unit over the control bus on the board.



50


The control logic processing unit communicates with the active and standby system control and communication units over the system control bus. Specifically, the logic control unit transmits the configuration data and query commands from the system control and communication unit to various units of the board; it also transmits the command responses, alarms, and performance events reported by units on the board to the system control and communication unit.

Power Supply Unit




Clock Unit


4.2.4 Front PanelThere are indicators, FE service ports, and GE service ports on the front panel.

Front Panel Diagram

Figure 1-1 Front panel of the EM6T

EM

6 TS

TA

T

SR

V

FE1 FE2 FE3 FE4GE2

EM

6 T

GE1PR

OG

Figure 1-2 Front panel of the EM6F

EM

6F

ST

AT

SR

V

GE2

EM

6F

GE1LIN

K1

LIN

K2

CLASS1LASER

PRODUCT

FE1 FE2 FE3 FE4PR

OG

Indicators

The front panel of the EM6T has the following indicators: STAT, SRV, and PROG. The front panel of the EM6F has the following indicators: STAT, SRV, PROG, LINK1, and LINK2. For status explanation for the indicators, see Indicator Status Explanation.



51


Ports

Port

Board

Description


Required Cable

FE1, FE2, FE3, FE4

EM6T/EM6F

FE service port

RJ-45

8 7 6 5 4 3 2 1

For status explanation for the indicators of an RJ-45 port, see Table 4-9.

The FE ports and GE electrical ports support the MDI, MDI-X, and auto-MDI/MDI-X modes. Table 4-10 and Table 4-11 provide the pin assignments for an RJ-45 port in different modes.

11.7 Network Cable

GE1/GE2

EM6T

GE service port (fixed electrical port)

RJ-45

EM6F

GE service port (using SFP modules)


TX RX



11.1 Fiber Jumper





ACT (yellow) On or blinking The port is receiving or transmitting data.


Table 1-2 Pin assignments for an RJ-45 port in MDI mode

Pin 10/100BASE-TX 1000BASE-T

Signal Function Signal Function

1 TX+ Transmitting data (+) BIDA+ Bidirectional data wire A (+)

2 TX- Transmitting data (-) BIDA- Bidirectional data wire A (-)



52




3 RX+ Receiving data (+) BIDB+ Bidirectional data wire B (+)

4 Reserved - BIDC+ Bidirectional data wire C (+)

5 Reserved - BIDC- Bidirectional data wire C (-)

6 RX- Receiving data (-) BIDB- Bidirectional data wire B (-)

7 Reserved - BIDD+ Bidirectional data wire D (+)

8 Reserved - BIDD- Bidirectional data wire D (-)

Table 1-3 Pin assignments for an RJ-45 port in MDI-X mode











Labels

There is a laser safety class label on the front panel of the EM6F.



53




4.2.6 Valid SlotsThe EM6T/EM6F can be inserted in slots 1-6. The slot allocation priority is as follows: slots 4 and 6 > slots 1 and 2 > slots 3 and 5. The logical slots of the EM6T/EM6F on the NMS are the same as its physical slots.



Table 4-12 lists the technical specifications of the EM6T/EM6F.

Table 1-1 Technical specifications of the EM6T/EM6F

Item Performance

Service ports

FE1, FE2, FE3, FE4

FE electrical port See Table 4-13.

GE1, GE2

GE electrical port

GE optical port By using different SFP modules, the equipment provides GE optical ports with different application codes and transmission distances.

For port specifications, see Table 4-14.


19.82 mm x 193.80 mm x 225.80 mm

Weight EM6T: 0.37 kg

EM6F: 0.40 kg

Power consumption EM6T: 10.4 W

EM6F: 11.3 W



54


Table 1-2 Specifications of OptiX OSN 550's Ethernet electrical ports

Service Port

Port Rate Code Pattern Port Type

GE/FE electrical port

10BASE-T Manchester coding signals

RJ-45

GE/FE electrical port

100BASE-TX MLT-3 coding signal

GE electrical port

1000BASE-T 4D-PAM5 coding signal

Table 1-3 Specifications of OptiX OSN 550's GE optical ports

Item Value

Nominal bit rate (Mbit/s)

1000

Optical port type 1000BASE-LX 1000BASE-VX 1000BASE-ZX



10 40 80


1270 to 1355 1270 to 1355 1500 to 1580


-9 to -3 -5 to 0 -2 to +5


-20 -23 -23


-3 -3 -3


9 9 9

4.3 MD1The MD1 is a 32xSmart E1 service processing board.


The functional version of the MD1 is TNM1.




55


The MD1 receives and transmits 32xE1 signals.


This section describes the working principle and signal flow of the MD1.

4.3.4 Front Panel



None.

4.3.6 Valid Slots

The MD1 can be inserted in slots 1-6. The slot allocation priority is as follows: slots 4 and 6 > slots 1 and 2 > slots 3 and 5. The logical slots of the MD1 on the NMS are the same as its physical slots.

4.3.7 Feature Code

The feature code of the MD1 indicates the E1 port impedance.



4.3.1 Version DescriptionThe functional version of the MD1 is TNM1.

4.3.2 Functions and FeaturesThe MD1 receives and transmits 32xE1 signals.

Table 4-15 lists the functions and features that the MD1 supports.

Table 1-4 Functions and features that the MD1 supports

Function and Feature

Board

Basic functions Receives and transmits E1 signals. The E1 service categories are configured flexibly as required.

E1 service categories

Supports the following E1 service categories:

CES E1

ATM/IMA E1

Port specifications Provides thirty-two 75-ohm/120-ohm E1 ports.



56



Board

PWE3 functions The MD1 works with the packet switching unit of the PCX board to implement PWE3 functions.

Service categories

− TDM PWE3 (CES) services

− ATM PWE3 services



OAM:



Supports MS-PWs.

ATM/IMA Number of ATM connections: 256

ATM traffic management

ATM encapsulation format

− N-to-one VPC

− N-to-one VCC

− One-to-one VPC

− One-to-one VCC

Maximum number of concatenated ATM cells: 31

ATM OAM: F4 (VP layer) and F5 (VC layer)

Maximum number of IMA groups: 32

Maximum number of members in an IMA group: 16

CES Service type: point-to-point service

Encapsulation types:

− CESoPSN

− SAToP

Compression of idle timeslots: supported (only for CESoPSN encapsulation)

Jitter compensation buffering time: 375 us to 16000 us

Packet loading time: 125 us to 5000 us

CES ACR: supported

Retiming: supported

Maintenance features

Inloops and outloops at E1 tributary ports


PRBS tests at E1 ports




57



Board

Hot board swapping

4.3.3 Working Principle and Signal FlowThis section describes the working principle and signal flow of the MD1.


Figure 1-1 Functional block diagram of the MD1

Backplane

Logiccontrol unit


E1

E1


Control bus

+3.3 V

ClockunitClock signal provided to the other units of the board System clock signal

+3.3 V backup power supplied to the board

Sig

na

lin

terfa

ce u

nit

Se

rvicep

roce

ssing

un

it

Lo

gic

pro

cessin

g u

nit

Servicebus

GE bus

Powersupply unit




Table 1-1 Signal processing in the receive direction of the MD1


1 Signal interface unit Receives external E1 signals.

Matches the resistance.

Equalizes signals.

Converts the level.

Restores clock signals.

Buffers the received data.

Performs HDB3/B8ZS/AMI decoding.



58



2 Service processing unit

Frames E1 signals.

Performs CES emulation or processes ATM/IMA services.

Encapsulates PWE3 services and converts the PWE3 services into Ethernet services.

4 Logic processing unit

Shifts transmission of service signals from the internal service bus to the GE bus in the backplane.

Sends service signals to the packet switching unit.


Table 1-1 Signal processing in the transmit direction of the MD1



Receives service signals from the packet switching unit.

Shifts transmission of service signals from the GE bus in the backplane to the internal service bus.

2 Service processing unit

Decapsulates service signals.

Re-forms CES packets or processes ATM/IMA services.

Converts signals into E1 signals and sends the E1 signals to the signal interface unit.

3 Signal interface unit Performs HDB3/B8ZS/AMI coding.

Performs clock re-timing.

Shapes pulses.

Drives the line.

Sends E1 signals to a port.


The board is directly controlled by the CPU unit on the system control and communication unit.

The CPU unit issues configuration and query commands to the other units of the board over the control bus.

These units then report command responses, alarms, and performance events to the CPU unit over the control bus.

The logic control unit decodes the address read/write signals from the CPU unit of the system control and communication unit.



59


Power Supply Unit




Clock Unit



Front Panel Diagram

Figure 1-1 Front panel of the MD1

MD

1

ST

AT

SR

V

32

17

16

1

Indicators

The front panel of the MD1 has the following indicators: STAT and SRV. For status explanation for the indicators, see Indicator Status Explanation.

Ports

Port Description

Connector Type Pin Assignment Required Cable

1 to 16

The first to sixteenth E1 ports

Anea 96

POS.96

POS.1

See Table 4-18. 11.5 E1/T1 Cable

17 to 32

The seventeenth to thirty-second E1 ports



60


Table 1-1 Pin assignments for an Anea 96 port

Pin Signal Pin Signal

1 The first received E1 differential signal (+)

25 The first transmitted E1 differential signal (+)

2 The first received E1 differential signal (-)

26 The first transmitted E1 differential signal (-)

3 The second received E1 differential signal (+)

27 The second transmitted E1 differential signal (+)

4 The second received E1 differential signal (-)

28 The second transmitted E1 differential signal (-)

5 The third received E1 differential signal (+)

29 The third transmitted E1 differential signal (+)

6 The third received E1 differential signal (-)

30 The third transmitted E1 differential signal (-)

7 The fourth received E1 differential signal (+)

31 The fourth transmitted E1 differential signal (+)

8 The fourth received E1 differential signal (-)

32 The fourth transmitted E1 differential signal (-)

9 The fifth received E1 differential signal (+)

33 The fifth transmitted E1 differential signal (+)

10 The fifth received E1 differential signal (-)

34 The fifth transmitted E1 differential signal (-)

11 The sixth received E1 differential signal (+)

35 The sixth transmitted E1 differential signal (+)

12 The sixth received E1 differential signal (-)

36 The sixth transmitted E1 differential signal (-)

13 The seventh received E1 differential signal (+)

37 The seventh transmitted E1 differential signal (+)

14 The seventh received E1 differential signal (-)

38 The seventh transmitted E1 differential signal (-)

15 The eighth received E1 differential signal (+)

39 The eighth transmitted E1 differential signal (+)

16 The eighth received E1 differential signal (-)

40 The eighth transmitted E1 differential signal (-)

17 The ninth received E1 differential signal (+)

41 The ninth transmitted E1 differential signal (+)

18 The ninth received E1 differential signal (-)

42 The ninth transmitted E1 differential signal (-)

19 The tenth received E1 differential signal (+)

43 The tenth transmitted E1 differential signal (+)



61



20 The tenth received E1 differential signal (-)

44 The tenth transmitted E1 differential signal (-)

21 The eleventh received E1 differential signal (+)

45 The eleventh transmitted E1 differential signal (+)

22 The eleventh received E1 differential signal (-)

46 The eleventh transmitted E1 differential signal (-)

23 The twelfth received E1 differential signal (+)

47 The twelfth transmitted E1 differential signal (+)

24 The twelfth received E1 differential signal (-)

48 The twelfth transmitted E1 differential signal (-)

49 The thirteenth received E1 differential signal (+)

73 The thirteenth transmitted E1 differential signal (+)

50 The thirteenth received E1 differential signal (-)

74 The thirteenth transmitted E1 differential signal (-)

51 The fourteenth received E1 differential signal (+)

75 The fourteenth transmitted E1 differential signal (+)

52 The fourteenth received E1 differential signal (-)

76 The fourteenth transmitted E1 differential signal (-)

53 The fifteenth received E1 differential signal (+)

77 The fifteenth transmitted E1 differential signal (+)

54 The fifteenth received E1 differential signal (-)

78 The fifteenth transmitted E1 differential signal (-)

55 The sixteenth received E1 differential signal (+)

79 The sixteenth transmitted E1 differential signal (+)

56 The sixteenth received E1 differential signal (-)

80 The sixteenth transmitted E1 differential signal (-)


4.3.6 Valid SlotsThe MD1 can be inserted in slots 1-6. The slot allocation priority is as follows: slots 4 and 6 > slots 1 and 2 > slots 3 and 5. The logical slots of the MD1 on the NMS are the same as its physical slots.

4.3.7 Feature CodeThe feature code of the MD1 indicates the E1 port impedance.



62


Table 1-2 Feature code of the MD1

Feature Code Port Impedance (Ohm)

A 75

B 120


Table 4-20 lists the technical specifications of the MD1.

Item Performance

E1 ports (1-16 and 17-32)

See Table 4-20.


19.82 mm x 193.80 mm x 225.80 mm

Weight 0.50 kg

Power consumption

12.2 W

Table 1-3 Specifications of OptiX OSN 550's CES/ATM/IMA service electrical ports

Item Performance

Standard compliance ITU-T G.703/G.823

Nominal bit rate (kbit/s) 2048

Code pattern HDB3

Impedance (ohm) 75 120

Pair in each direction One coaxial pair One symmetrical pair

Port type Anea 96



63

OptiX OSN 550 Multi-Service CPE Optical Transmission SystemHardware Description 5 SDH Boards

5 SDH Boards

5.1 SL1DThe SL1D is a 2xSTM-1 optical interface board.


The functional version of the SL1D is TNH2.


The SL1D receives and transmits 2xSTM-1 optical signals, performs O/E conversion for STM-1 optical signals, extracts and inserts overhead bytes, and reports alarms generated on the line.


The SL1D consists of an O/E conversion unit, an overhead processing unit, a logic control unit, and a clock unit.

5.1.4 Front Panel



None.

5.1.6 Valid Slots

The SL1D can be inserted in slots 1-6 in the chassis. The logical slots of the SL1D on the NMS are the same as its physical slots.

5.1.7 Feature Code

The feature code of a board refers to the number next to the board name in the bar code and indicates the type of optical port. SL1D boards have feature codes.





64


5.1.1 Version DescriptionThe functional version of the SL1D is TNH2.

5.1.2 Functions and FeaturesThe SL1D receives and transmits 2xSTM-1 optical signals, performs O/E conversion for STM-1 optical signals, extracts and inserts overhead bytes, and reports alarms generated on the line.

Table 5-1 lists the functions and features that the SL1D supports.

Table 1-4 Functions and features that the SL1D supports


Board

Basic functions Receives and transmits 2xSTM-1 optical signals.

Optical port specifications

Provides S-1.1, L-1.1, and L-1.2 optical ports.

The characteristics of all optical ports comply with ITU-T G.957.

Optical module specifications

Optical module information can be detected and queried.

Single-fiber bidirectional optical modules can be used.

Pluggable optical modules support hot swapping.

Appropriate SFP optical modules can be used, their information can be queried, and their running status can be monitored. This facilitates your maintenance.

Optical ports allow setting the on/off state of a laser and support the automatic laser shutdown (ALS) function.

DCN Supports outband DCN.

Service processing

Processes VC-12, VC-3, and VC-4 services.

Overhead processing

Processes the section overheads of STM-1 signals.

Transparently transmits or terminates path overheads.

Sets and queries J0, J1, and C2 bytes.

Alarms and performance events

Provides various alarms and performance events, facilitating equipment management and maintenance.

Protection schemes

Supports two-fiber unidirectional ring multiplex section protection (MSP).

Supports linear multiplex section protection (MSP).

Supports sub-network connection protection (SNCP).



65



Board


Inloops and outloops on ports and paths



In-service FPGA loading

Hot board swapping

5.1.3 Working Principle and Signal FlowThe SL1D consists of an O/E conversion unit, an overhead processing unit, a logic control unit, and a clock unit.


Figure 1-1 Functional block diagram of the SL1D

Backplane

STM-1 Ove

rhe

ad

pro

cessin

gu

nit Overhead bus System control and

communication unit

Cross-connect unit

Clock unit System clock signalClock signal provided to theother units on the board


Service bus

Control bus

Logiccontrol

unit

STM-1

O/E

con

versio

nu

nit

+3.3 V




66



Table 1-1 Signal processing in the receive direction of the SL1D


1 O/E conversion unit Regenerates STM-1 optical signals.

Detects R_LOS alarms.

Converts STM-1 optical signals into STM-1 electrical signals.

2 Overhead processing unit


Aligns frames and detects R_LOS and R_LOF alarms.

Descrambles signals.

Checks B1 and B2 bytes and generates specific alarms and performance events.

Checks the M1 byte and bits 6-8 of the K2 byte, and generates specific alarms and performance events.

Detects the changes in the SSM in the S1 byte and reports the SSM status to the system control and communication unit.

Extracts orderwire bytes, auxiliary channel bytes including F1 and SERIAL bytes, DCC bytes, and K bytes to form a 2 Mbit/s overhead signal and transmits the 2 Mbit/s overhead signal to the system control and communication unit.

Adjusts AU pointers and generates specific performance events.

Checks higher order path overheads and generates specific alarms and performance events.

Transmits pointer indication signals and VC-4 signals to the cross-connect unit.


Table 1-1 Signal processing in the transmit direction of the SL1D



Receives VC-4 signals and pointer indication signals from the cross-connect unit.

Sets higher order path overheads.

Sets AU pointers.

Sets multiplex section overhead bytes.

Sets regenerator section overhead bytes.

Scrambles signals.

2 O/E conversion unit Converts electrical signals into optical signals.



67



The board is directly controlled by the CPU unit on the system control and communication unit. The CPU unit issues configuration and query commands to the other units of the board over the control bus. These units then report command responses, alarms, and performance events to the CPU unit over the control bus.

The logic control unit decodes the address read/write signals from the CPU unit of the system control and communication unit and enables FPGA loading.

Clock Unit



Front Panel Diagram

Figure 5-2 shows the front panel of the SL1D.

Figure 1-1 Front panel of the SL1D

SL1

D

SL1

D

ST

AT

SR

V

LOS

1

LOS

2

TX1/RX1 TX2/RX2

CLASS1LASER

PRODUCT

Indicators

The front panel of the SL1D has the following indicators: STAT, SRV, LOS1, and LOS2. For status explanation for the indicators, see Indicator Status Explanation.

Ports

Port Description


Required Cable

TX1/RX1

Transmit/Receive port of the first STM-1 optical port


TX RX



11.1 Fiber Jumper



68


Port Description


Required Cable

TX2/RX2

Transmit/Receive port of the second STM-1 optical port

Labels




5.1.6 Valid SlotsThe SL1D can be inserted in slots 1-6 in the chassis. The logical slots of the SL1D on the NMS are the same as its physical slots.

5.1.7 Feature CodeThe feature code of a board refers to the number next to the board name in the bar code and indicates the type of optical port. SL1D boards have feature codes.

Table 1-1 Feature code of the SL1D

Feature Code

Type of Optical Port

01 S-1.1, eSFP optical module

02 L-1.1, eSFP optical module


04 S-1.1, single-fiber bidirectional optical module (The operating wavelength of optical port 1 is 1550 nm and that of optical port 2 is 1310 nm.)

05 L-1.1, single-fiber bidirectional optical module (The operating wavelength of optical port 1 is 1550 nm and that of optical port 2 is 1310 nm.)



69



Table 5-5 lists the technical specifications of the SL1D.

Table 1-2 Technical specifications of the SL1D

Item Performance

Service ports

TX1/RX1


For the performance of STM-1 optical ports, see Table 5-6.

TX2/RX2



19.82 mm x 193.80 mm x 225.80 mm

Weight 0.30 kg

Power consumption 4.12 W


Item Value




2 to 15 20 to 40 60 to 80


1261 to 1360 1263 to 1360 1480 to 1580



-15 to -8 -5 to 0 -5 to 0


-28 -34 -34


-8 -10 0


8.2 10 10



70


Item Value




Explanation for optical port type "L-1.2" is as follows: "L" represents long distance; the first digit "1" represents STM-1 signals; the second digit "2" represents ITU-T G.652 fibers (1550 nm)..

5.2 SL1QThe SL1Q is a 4xSTM-1 optical interface board.


The functional version of the SL1Q is TNH2.


The SL1Q receives and transmits 4xSTM-1 optical signals, performs O/E conversion for STM-1 optical signals, extracts and inserts overhead bytes, and reports alarms generated on the line.


The SL1Q consists of an O/E conversion unit, an overhead processing unit, a logic control unit, and a clock unit.

5.2.4 Front Panel

There are indicators, ports, and a laser safety class label on the front panel.


The SL1Q does not have any jumpers or DIP switches that are used for board settings.

5.2.6 Valid Slots

The SL1Q can be inserted in slots 1-6 in the chassis.

5.2.7 Feature Code

The feature code of a board refers to the number next to the board name in the bar code and indicates the type of optical port. SL1Q boards have feature codes.


This section describes the board specifications, including the parameters specified for optical ports, dimensions, weight, and power consumption.

5.2.1 Version DescriptionThe functional version of the SL1Q is TNH2.



71


5.2.2 Functions and FeaturesThe SL1Q receives and transmits 4xSTM-1 optical signals, performs O/E conversion for STM-1 optical signals, extracts and inserts overhead bytes, and reports alarms generated on the line.

Table 5-7 lists the functions and features that the SL1Q supports.

Table 1-4 Functions and features that the SL1Q supports


Board


Optical port specifications

Provides S-1.1, L-1.1, and L-1.2 optical ports.


Optical module specifications

Optical module information can be detected and queried.

Appropriate SFP optical modules can be used and the running status can be monitored. This facilitates your maintenance.

Optical ports allow setting the on/off state of a laser and support the automatic laser shutdown (ALS) function.


Service processing

Processes VC-12, VC-3, and VC-4 services.

Overhead processing

Processes the section overheads of STM-1 signals.

Processes higher order path overheads.

Sets K-byte reporting, transmission, and pass-through.

Provides transparent DCCs and orderwire byte channels.


Pointer processing Processes AU pointers.



Protection schemes

Supports two-fiber unidirectional ring MSP.

Supports linear MSP.

Supports SNCP.


Inloops and outloops at optical ports

Inloops and outloops on VC-4 paths for quick fault locating

Setting of overhead bytes to be sent/received

Enabling/Disabling SSMs on line optical ports

Pass-through tests of line K bytes

Setting of bit error threshold-crossing values and degrade thresholds



72


5.2.3 Working Principle and Signal FlowThe SL1Q consists of an O/E conversion unit, an overhead processing unit, a logic control unit, and a clock unit.

Figure 1-2 Functional block diagram of the SL1Q

Backplane

STM-1 Ove

rhe

ad

pro

cessin

gu

nit Overhead bus System control and

communication unit

Cross-connect unit



Service bus

Control bus

Logiccontrol

unit

STM-1

O/E

con

versio

nu

nit

+3.3 V



Table 1-1 Signal processing in the receive direction of the SL1Q




Converts STM-1 optical signals into STM-1 electrical signals.



73









Detects changes in the SSM in the S1 byte and reports the SSM status to the system control and communication unit.






Table 1-1 Signal processing in the transmit direction of the SL1Q





Sets AU pointers.



Scrambles signals.



The board is directly controlled by the CPU unit on the system control and communication unit. The CPU unit issues configuration and query commands to the other units on the board over the control bus. These units then report command responses, alarms, and performance events to the CPU unit over the control bus.



74


The logic control unit decodes the address read/write signals from the system control and communication unit.

Clock Unit


5.2.4 Front PanelThere are indicators, ports, and a laser safety class label on the front panel.

Front Panel Diagram

Figure 1-1 Front panel of the SL1Q

SL

1Q

ST

AT

SR

VL

OS

1L

OS

2

TX1/RX1 TX2/RX2

CLASS1LASER

PRODUCT

LO

S3

LO

S4

TX3/RX3 TX4/RX4

Indicators

The front panel of the SL1Q has the following indicators: STAT, SRV, LOS1, LOS2, LOS3, and LOS4. For status explanation for the indicators, see Indicator Status Explanation.

Ports

Port

Description


Required Cable

TX1/RX1



TX RX



11.1 Fiber Jumper

TX2/RX2


TX3/RX3

Transmit/Receive port of the third STM-1 optical port



75


Port

Description


Required Cable

TX4/RX4

Transmit/Receive port of the fourth STM-1 optical port

Labels



5.2.5 DIP Switches and JumpersThe SL1Q does not have any jumpers or DIP switches that are used for board settings.

5.2.6 Valid SlotsThe SL1Q can be inserted in slots 1-6 in the chassis.

5.2.7 Feature CodeThe feature code of a board refers to the number next to the board name in the bar code and indicates the type of optical port. SL1Q boards have feature codes.

Table 1-1 Feature code of the SL1Q

Feature Code

Type of Optical Port





05 L-1.1, single-fiber bidirectional optical module (The operating wavelength of optical port 1 is 1550 nm and that of optical port 2 is 1310 nm.)



76


5.2.8 Technical SpecificationsThis section describes the board specifications, including the parameters specified for optical ports, dimensions, weight, and power consumption.

Table 5-11 lists the technical specifications of the SL1Q.

Table 1-2 Technical specifications of the SL1Q

Item Performance

Service ports

TX1/RX1



TX2/RX2


TX3/RX3

Transmit/Receive port of the third STM-1 optical port

TX3/RX3

Transmit/Receive port of the fourth STM-1 optical port


19.82 mm x 193.80 mm x 225.80 mm

Weight 0.30 kg



Item Value




2 to 15 20 to 40 60 to 80


1261 to 1360 1263 to 1360 1480 to 1580



-15 to -8 -5 to 0 -5 to 0


-28 -34 -34


-8 -10 0


8.2 10 10



77


Item Value




Explanation for optical port type "L-1.2" is as follows: "L" represents long distance; the first digit "1" represents STM-1 signals; the second digit "2" represents ITU-T G.652 fibers (1550 nm)..

5.3 SL4DThe SL4D is a 2xSTM-4 optical interface board.


The functional version of the SL4D is TNH2.


The SL4D receives and transmits 2xSTM-4 optical signals, performs O/E conversion for STM-4 optical signals, extracts and inserts overhead bytes, and reports alarms generated on the line.


The SL4D consists of an O/E conversion unit, an overhead processing unit, a logic control unit, and a clock unit.

5.3.4 Front Panel

There are indicators, ports, a bar code, and a laser safety class label on the front panel.


None.

5.3.6 Valid Slots

The SL4D can be inserted in slots 1-2 in the chassis. The logical slots of the SL4D on the NMS are the same as its physical slots.

5.3.7 Feature Code

The feature code of a board refers to the number next to the board name in the bar code and indicates the type of optical port. SL4D boards have feature codes.



5.3.1 Version DescriptionThe functional version of the SL4D is TNH2.



78


5.3.2 Functions and FeaturesThe SL4D receives and transmits 2xSTM-4 optical signals, performs O/E conversion for STM-4 optical signals, extracts and inserts overhead bytes, and reports alarms generated on the line.

Table 5-13 lists the functions and features that the SL4D supports.

Table 1-4 Functions and features that the SL4D supports



Optical port specifications Provides S-4.1, L-4.1, and L-4.2 optical ports.


Optical module specifications Allows setting the on/off state of a laser and supports the automatic laser shutdown (ALS) function.


Service processing Processes VC-12, VC-3, and VC-4 services.

Overhead processing Processes the section overheads of STM-4 signals.

Processes higher order path overheads.

Sets K-byte reporting, transmission, and pass-through.

Provides transparent DCCs and orderwire byte channels.


Pointer processing Processes AU pointers.

Alarms and performance events Provides various alarms and performance events, facilitating equipment management and maintenance.

Protection schemes Supports two-fiber unidirectional/bidirectional ring MSP.

Supports linear MSP.

Supports SNCP.



79



Maintenance features Inloops and outloops at optical ports

Inloops and outloops on VC-4 paths for quick fault locating.

Setting of overhead bytes to be sent/received.

Enabling/Disabling SSMs on line optical ports

Pass-through tests of line K bytes

Setting of bit error threshold-crossing values and degrade thresholds

ALS

5.3.3 Working Principle and Signal FlowThe SL4D consists of an O/E conversion unit, an overhead processing unit, a logic control unit, and a clock unit.


Figure 1-1 Functional block diagram of the SL4D

Backplane

STM-4 Ove

rhea

dp

roce

ssing

un

it Overhead bus System control andcommunication unit

Cross-connect unit


Power supplied to the otherunits on the board

Service bus

Control bus

Logiccontrol

unit

STM-4

O/E

con

version

un

it

+3.3 V




80



Table 1-1 Signal processing in the receive direction of the SL4D




Converts STM-4 optical signals into electrical signals.







Detects the changes in the SSM in the S1 byte and reports the SSM status to the system control and communication unit.






Table 1-1 Signal processing in the transmit direction of the SL4D





Sets AU pointers.



Scrambles signals.




81




The logic control unit decodes the address read/write signals from the CPU unit of the system control and communication unit and enables FPGA loading.

Clock Unit


5.3.4 Front PanelThere are indicators, ports, a bar code, and a laser safety class label on the front panel.

Front Panel Diagram

Figure 5-6 shows the front panel of the SL4D.

Figure 1-1 Front panel of the SL4D

SL 4

D

ST

AT

SR

VL

OS

1L

OS

2

TX1/RX1 TX2/RX2

CLASS1LASER

PRODUCT

Indicators

The front panel of the SL4D has the following indicators: STAT, SRV, LOS1, and LOS2. For status explanation for the indicators, see Indicator Status Explanation.

Ports

Port Description


Required Cable

TX1/RX1



TX RX



11.1 Fiber Jumper

TX2/RX2




82


Labels




5.3.6 Valid SlotsThe SL4D can be inserted in slots 1-2 in the chassis. The logical slots of the SL4D on the NMS are the same as its physical slots.

5.3.7 Feature CodeThe feature code of a board refers to the number next to the board name in the bar code and indicates the type of optical port. SL4D boards have feature codes.

Table 1-1 Feature code of the SL4D

Feature Code Type of Optical Port






Table 5-17 lists the technical specifications of the SL4D.

Table 1-2 Technical specifications of the SL4D

Item Performance

Service ports

TX1/RX1



TX2/RX2



19.82 mm x 193.80 mm x 225.80 mm



83


Item Performance

Weight 0.30 kg



Item Value




2 to 15 20 to 40 50 to 80


1274 to 1356 1280 to 1335 1480 to 1580



-15 to -8 -3 to +2 -3 to +2


-28 -28 -28


-8 -8 -8


8.2 10 10







84

OptiX OSN 550 Multi-Service CPE Optical Transmission SystemHardware Description 6 PDH Boards

6 PDH Boards

6.1 SP3DThe SP3D is a 42xE1/T1 electrical interface board.


The functional version of the SP3D is TNH2.


The SP3D processes E1/T1 signals and overheads, and supports alarms, performance events, and maintenance features.


The SP3D consists of an interface unit, a CODEC unit, a mapping/demapping unit, a logic control unit, and a power supply unit.

6.1.4 Front Panel



None.

6.1.6 Valid Slots

The SP3D can be inserted in slots 1-6 in the chassis. The logical slots of the SP3D on the NMS are the same as its physical slots.

6.1.7 Feature Code

The feature code of the SP3D indicates the E1/T1 port impedance.



6.1.1 Version DescriptionThe functional version of the SP3D is TNH2.



85


6.1.2 Functions and FeaturesThe SP3D processes E1/T1 signals and overheads, and supports alarms, performance events, and maintenance features.

Table 6-1 lists the functions and features that the SP3D supports.

Table 1-4 Functions and features that the SP3D supports


Board

Service processing

Receives/Transmits and processes 42xE1/T1 signals.

Overhead processing

Processes path overheads at the VC-12 level such as J2 and V5.




Inloops and outloops at electrical ports



PRBS tests

6.1.3 Working Principle and Signal FlowThe SP3D consists of an interface unit, a CODEC unit, a mapping/demapping unit, a logic control unit, and a power supply unit.



86



Figure 1-1 Functional block diagram of the SP3D

Backplane

Logiccontrol unit

Cross-connect unit

E1/T1Interface

unit

Mapping/Demapping

unit


Service busCODECunit

Clock unit

E1/T1

E1/T1signal

Controlbus



System clock signal

+3.3 V

Powersupply unit




Table 1-1 Signal processing in the receive direction of the SP3D


1 Interface unit Couples external E1/T1 signals by using a transformer and then transmits the signals to the board.

2 CODEC unit Equalizes the received signals.


Detects T_ALOS alarms.

Performs HDB3 decoding.



87



3 Mapping/Demapping unit

Asynchronously maps signals into C-12s.

Adds path overhead bytes to C-12s to form VC-12s.

Processes pointers to form TU-12s.

Performs byte interleaving for three TU-12s to form one TUG-2.

Performs byte interleaving for seven TUG-2s to form one TUG-3.

Performs byte interleaving for three TUG-3s to form one C-4.

Adds higher order path overhead bytes to one C-4 to form one VC-4.


Processes clock signals.

Transmits VC-4 signals and pointer indication signals to the active and standby cross-connect units.


Table 1-1 Signal processing in the transmit direction of the SP3D






Demultiplexes three TUG-3s from one VC-4.

Demultiplexes seven TUG-2s from one TUG-3.

Demultiplexes three VC-12s from one TUG-2.

Processes path overheads and pointers and detects specific alarms and performance events.

Extracts E1/T1 signals.

3 CODEC unit Performs HDB3 coding.

4 Interface unit Couples E1/T1 signals by using a transformer and then transmits the signals to an external cable.





88


The logic control unit decodes the address read/write signals from the CPU unit of the system control and communication unit.

Power Supply Unit




Clock Unit



Front Panel Diagram

Figure 6-2 shows the front panel of the SP3D.

Figure 1-1 Front panel of the SP3D

SP

3D

SP

3D

ST

AT

SR

V 1

21

22

42

Indicators

The front panel of the SP3D has the following indicators: STAT and SRV. For status explanation for the indicators, see Indicator Status Explanation.

Ports

Port

Description Connector Type Pin Assignment

Required Cable

1-21 Receives and transmits the first to twenty-first E1/T1 signals.

Anea 96

POS.96

POS.1

See Table 6-4. 11.5 E1/T1 Cable

22-42

Receives and transmits the twenty-second to forty-second E1/T1 signals.



89


Table 1-1 Pin assignments for an Anea 96 port


1 The first received E1 differential signal (+)

25 The first transmitted E1 differential signal (+)

2 The first received E1 differential signal (-)

26 The first transmitted E1 differential signal (-)

3 The second received E1 differential signal (+)

27 The second transmitted E1 differential signal (+)

4 The second received E1 differential signal (-)

28 The second transmitted E1 differential signal (-)

5 The third received E1 differential signal (+)

29 The third transmitted E1 differential signal (+)

6 The third received E1 differential signal (-)

30 The third transmitted E1 differential signal (-)

7 The fourth received E1 differential signal (+)

31 The fourth transmitted E1 differential signal (+)

8 The fourth received E1 differential signal (-)

32 The fourth transmitted E1 differential signal (-)

9 The fifth received E1 differential signal (+)

33 The fifth transmitted E1 differential signal (+)

10 The fifth received E1 differential signal (-)

34 The fifth transmitted E1 differential signal (-)

11 The sixth received E1 differential signal (+)

35 The sixth transmitted E1 differential signal (+)

12 The sixth received E1 differential signal (-)

36 The sixth transmitted E1 differential signal (-)

13 The seventh received E1 differential signal (+)

37 The seventh transmitted E1 differential signal (+)

14 The seventh received E1 differential signal (-)

38 The seventh transmitted E1 differential signal (-)

15 The eighth received E1 differential signal (+)

39 The eighth transmitted E1 differential signal (+)

16 The eighth received E1 differential signal (-)

40 The eighth transmitted E1 differential signal (-)

17 The ninth received E1 differential signal (+)

41 The ninth transmitted E1 differential signal (+)

18 The ninth received E1 differential signal (-)

42 The ninth transmitted E1 differential signal (-)



90



19 The tenth received E1 differential signal (+)

43 The tenth transmitted E1 differential signal (+)

20 The tenth received E1 differential signal (-)

44 The tenth transmitted E1 differential signal (-)

21 The eleventh received E1 differential signal (+)

45 The eleventh transmitted E1 differential signal (+)

22 The eleventh received E1 differential signal (-)

46 The eleventh transmitted E1 differential signal (-)

23 The twelfth received E1 differential signal (+)

47 The twelfth transmitted E1 differential signal (+)

24 The twelfth received E1 differential signal (-)

48 The twelfth transmitted E1 differential signal (-)

49 The thirteenth received E1 differential signal (+)

73 The thirteenth transmitted E1 differential signal (+)

50 The thirteenth received E1 differential signal (-)

74 The thirteenth transmitted E1 differential signal (-)

51 The fourteenth received E1 differential signal (+)

75 The fourteenth transmitted E1 differential signal (+)

52 The fourteenth received E1 differential signal (-)

76 The fourteenth transmitted E1 differential signal (-)

53 The fifteenth received E1 differential signal (+)

77 The fifteenth transmitted E1 differential signal (+)

54 The fifteenth received E1 differential signal (-)

78 The fifteenth transmitted E1 differential signal (-)

55 The sixteenth received E1 differential signal (+)

79 The sixteenth transmitted E1 differential signal (+)

56 The sixteenth received E1 differential signal (-)

80 The sixteenth transmitted E1 differential signal (-)


6.1.6 Valid SlotsThe SP3D can be inserted in slots 1-6 in the chassis. The logical slots of the SP3D on the NMS are the same as its physical slots.

6.1.7 Feature CodeThe feature code of the SP3D indicates the E1/T1 port impedance.



91


Table 1-2 Feature code of the SP3D

Feature Code Port Impedance (Ohm)

A 120

B 75


Table 6-6 lists the technical specifications of the SP3D.

Table 1-3 Technical specifications of the SP3D

Item Performance

Service ports

1-21 Receives and transmits the first to twenty-first E1/T1 signals.

See Table 6-7.

22-42 Receives and transmits the twenty-second to forty-second E1/T1 signals.


19.82 mm x 193.80 mm x 225.80 mm

Weight 0.85 kg


Table 1-4 Specifications of OptiX OSN 550's E1/T1 electrical ports

Electrical Port Type 1544 kbit/s 2048 kbit/s

Code pattern B8ZS code, AMI code HDB3 code

Waveform at the output port Complies with ITU-T G.703.

Signal bit rate at the output port

Allowed attenuation at the input port

Permitted frequency deviation at the input port

Complies with ITU-T G.823.

Input jitter tolerance Complies with ITU-T G.824.


Anti-interference capability at the input port

- Complies with ITU-T G.703.



92


Electrical Port Type 1544 kbit/s 2048 kbit/s

Reflection attenuation at the input and output ports

- Complies with ITU-T G.703.

Output jitter Complies with ITU-T G.823 and G.824.

Mapping jitter Complies with ITU-T G.783.

Combined jitter

Jitter transfer function - Complies with ITU-T G.742.

Port type Anea 96

6.2 PL3TThe PL3T is a 3xE3/T3 electrical interface board.


The functional version of the PL3T is TNH2.


The PL3T processes E3/T3 signals and overheads, and supports alarms, performance events, and maintenance features.


The PL3T consists of an interface unit, a CODEC unit, a mapping/demapping unit, and a logic control unit.

6.2.4 Front Panel



The PL3T does not have any jumpers or DIP switches that are used for board settings.

6.2.6 Valid Slots

The PL3T can be inserted in slots 1-6 in the chassis.

6.2.7 Feature Code

PL3T boards do not have feature codes.


This section describes the board specifications, including the parameters specified for electrical ports, dimensions, weight, and power consumption.

6.2.1 Version DescriptionThe functional version of the PL3T is TNH2.



93


6.2.2 Functions and FeaturesThe PL3T processes E3/T3 signals and overheads, and supports alarms, performance events, and maintenance features.

Table 6-8 lists the functions and features that the PL3T supports.

Table 1-5 Functions and features that the PL3T supports


Board

Service processing

Receives/Transmits and processes 3xE3/T3 signals.

Overhead processing

Sets and queries all path overheads at the VC-3 level.




Inloops and outloops at electrical ports




PRBS tests

Hot board swapping

6.2.3 Working Principle and Signal FlowThe PL3T consists of an interface unit, a CODEC unit, a mapping/demapping unit, and a logic control unit.

This section describes how the PL3T processes one E3/T3 signal, and it serves as an example to describe the working principle and signal flow of the PL3T. Figure 6-3 shows the functional block diagram of the PL3T.



94


Figure 1-2 Functional block diagram of the PL3T

Backplane

Logiccontrol unit

Cross-connect unit

E3/T3Interface

unit

Mapping/Demapping

unit


Service busCODECunit

Clock unit

E3/T3signal

Controlbus



System clock signal

+3.3 V

E3/T3


Table 1-1 Signal processing in the receive direction of the PL3T


1 Interface unit Couples external E3/T3 signals by using a transformer and then transmits the signals to the board.

2 CODEC unit Equalizes the received signals.


Detects T_ALOS alarms.

Performs HDB3 decoding.


Asynchronously maps the signal into C-3.

Processes path overheads and forms the signal to be VC-3.

Processes pointers and forms the signal to be TU-3.

One TU-3 is multiplexed into one TUG-3.

Three TU-3s are performed with byte interleaving and are multiplexed into one C-4.

C-4 is added with higher order path overheads and the VC-4 is formed.



95



4 Logic control unit Processes clock signals.

Transmits VC-4 signals and pointer indication signals to the active and standby cross-connect units.


Table 1-1 Signal processing in the transmit direction of the PL3T


1 Logic control unit Processes clock signals.



Demultiplexes three TUG-3s from one VC-4.

Demultiplexes one TU-3 from one TUG-3.

Demultiplexes one VC-3 from one TU-3.

Processes path overheads and pointers and detects specific alarms and performance events.

Extracts E3/T3 signals.

3 CODEC unit Performs HDB3 coding.

4 Interface unit Couples E3/T3 signals by using a transformer and then transmits the signals to an external cable.


The board is directly controlled by the CPU unit on the system control and communication unit. The CPU unit issues configuration and query commands to the other units on the board over the control bus. These units then report command responses, alarms, and performance events to the CPU unit over the control bus.

The logic control unit decodes the address read/write signals from the system control and communication unit.

Clock Unit





96


Front Panel Diagram

Figure 6-4 shows the front panel of the PL3T.

Figure 1-1 Front panel of the PL3T

PL3

T

PL3

T

ST

AT

SR

VTX1 RX1 TX2 RX3 TX3 RX3

Indicators

The front panel of the PL3T has the STAT and SRV indicators. For status explanation for the indicators, see Indicator Status Explanation.

Ports

The front panel of the PL3T has three electrical ports. Table 6-11 describes the type and usage of the electrical ports of the PL3T.

Table 1-1 Electrical ports of the PL3T

Port

Description Connector Type

Pin Assignment

Required Cable

TX1-TX3

Transmits the first to third E3/T3 signals.

SMB Inner core: transmitting data (+)

Outer core: transmitting data (-)

11.6 E3/T3 Cable

RX1-RX3

Receives the first to third E3/T3 signals.

Inner core: transmitting data (+)

Outer core: transmitting data (-)

6.2.5 DIP Switches and JumpersThe PL3T does not have any jumpers or DIP switches that are used for board settings.

6.2.6 Valid SlotsThe PL3T can be inserted in slots 1-6 in the chassis.

6.2.7 Feature CodePL3T boards do not have feature codes.



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6.2.8 Technical SpecificationsThis section describes the board specifications, including the parameters specified for electrical ports, dimensions, weight, and power consumption.

Table 6-12 lists the technical specifications of the PL3T.

Table 1-2 Technical specifications of the PL3T

Item Performance

Service ports

TX1-TX3

Transmits the first to third E3/T3 signals.

See Table 6-13.

RX1-RX3

Receives the first to third E3/T3 signals.


19.82 mm x 193.80 mm x 225.80 mm

Weight 0.30 kg


Table 1-3 Specifications of OptiX OSN 550's E3/T3 electrical ports

Parameter Nominal Value

Bit rate 34368 kbit/s 44736 kbit/s

Number of ports 3xE3/T3

Code pattern HDB3 B3ZS

Connector SMB SMB

Impedance (ohm) 75 75

Signal bit rate at the output port


Permitted frequency deviation at the input port

Allowed attenuation at the input port

Input jitter tolerance Complies with ITU-T G.823.




98

OptiX OSN 550 Multi-Service CPE Optical Transmission SystemHardware Description 7 Auxiliary Boards

7 Auxiliary Boards

7.1 AUXThe AUX is an auxiliary interface board that provides one orderwire phone port, one 64 kbit/s synchronous transparent data port, one 19.2 kbit/s asynchronous transparent data port, and alarm input/output ports.


The functional version of the AUX is TNM1.


The AUX provides one orderwire phone port, one external clock port, one 64 kbit/s synchronous data port, one 19.2 kbit/s asynchronous transparent data port, and one outdoor cabinet monitoring port.


This section describes the working principle and signal flow of the AUX.

7.1.4 Front Panel



None.

7.1.6 Valid Slots

The AUX can be inserted in slots 1-6 in the chassis. The logical slots of the AUX on the NMS are the same as its physical slots.

7.1.7 Feature Code

None.





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7.1.1 Version DescriptionThe functional version of the AUX is TNM1.

7.1.2 Functions and FeaturesThe AUX provides one orderwire phone port, one external clock port, one 64 kbit/s synchronous data port, one 19.2 kbit/s asynchronous transparent data port, and one outdoor cabinet monitoring port.

Table 7-1 lists the functions and features that the AUX supports.

Table 1-4 Functions and features that the AUX supports


Synchronous/Asynchronous transparent data port

Provides one 64 kbit/s synchronous transparent data port or 19.2 kbit/s asynchronous transparent data port.

External clock port Provides one 120-ohm, two-channel clock input/output port for connecting to BITS.

Alarm input/output ports Provides alarm ports with six inputs and two outputs.

Outdoor cabinet monitoring port

Provides one outdoor cabinet monitoring port (sharing one port physically with an alarm input/output port) for monitoring the temperature and humidity of an outdoor cabinet.

Orderwire phone port Provides one orderwire phone port so that operation/maintenance engineers at different workstations can have voice communication with each other.

7.1.3 Working Principle and Signal FlowThis section describes the working principle and signal flow of the AUX.



100



Figure 1-1 Functional block diagram of the AUX

Orderwireunit

Powersupply unit

Clock unit

Logiccontrol unit

Board statusdetection unit

Backplane

Power dip detection signal

System bus

+3.3 V


Clocksignal

Synchronous/Asynchronoustransparent data port

Orderwire phone port

6-input/2-output alarm ports

Outdoor cabinet monitoring port

Two-channel external clock port


Power Supply Unit Receives the +3.3 V power supply from the backplane and supplies it to the other units

on the AUX.

Receives and shuts down control signals.

Orderwire Unit Provides one 64 kbit/s synchronous transparent data port or one 19.2 kbit/s asynchronous

transparent data port.

Provides one orderwire phone port.

Provides 6-input/2-output alarm ports.

Provides one outdoor cabinet monitoring port.

Provides one two-channel external clock port.

Logic Control Unit Provides an interface with the CPU unit and works with the CPU unit to control the

board.

Processes orderwire bytes and overhead bytes.


Provides board status information.

Checks the status of the active and standby system control, switching, and timing boards.

Checks the status of the active and standby clocks.

Switches system clock reference sources automatically or by running specific commands.

Detects and reports the status of the key clock for each board in the system.

Detects the presence of the key clock for each board in the system and reports specific alarms if any key clock is found lost.



101


Board Status Detection Unit Detects board performance data such as board temperature and voltage.

Controls power shut-down.

Stores and reads board manufacturing information.

Clock Unit Provides clock signals to the logic control unit.


Front Panel Diagram

A UX

STAT

SRV

PHONEF1/ S1 ALMO ALMI SYNCALMI 2/ EXT TOD0 TOD1

Indicators

The front panel of the AUX has the following indicators: STAT and SRV. For status explanation for the indicators, see Indicator Status Explanation.

Ports

Table 1-1 Description of the ports on the AUX

Port

Description

Connector Type


F1/S1

64 kbit/s synchronous transparent data port or 19.2 kbit/s asynchronous transparent data port

RJ-45

8 7 6 5 4 3 2 1

For status explanation for the indicators of an RJ-45 port, see Table 7-3.

Pin 1: Transmitting asynchronous data signals

Pin 2: Grounding end

Pin 3: Receiving asynchronous data signals

Pin 4: Transmitting synchronous data signals (TIP)

Pin 5: Transmitting synchronous data signals (RING)

Pin 6: Grounding end

Pin 7: Receiving synchronous data signals (TIP)

Pin 8: Receiving synchronous data signals (RING)

11.7 Network Cable



102


Port

Description

Connector Type


PHONE

Orderwire phone port

Pin 1: Not defined

Pin 2: Not defined

Pin 3: Not defined

Pin 4: Orderwire signal 1

Pin 5: Orderwire signal 2

Pin 6: Not defined

Pin 7: Not defined

Pin 8: Not defined

ALMO

Alarm output port

Pin 1: The first external alarm output signal (+)

Pin 2: The first external alarm output signal (-)

Pin 3: The second external alarm output signal (+)

Pin 4: The first external alarm output signal (+)

Pin 5: The first external alarm output signal (-)

Pin 6: The second external alarm output signal (-)

Pin 7: The second external alarm output signal (+)

Pin 8: The second external alarm output signal (-)

ALMI1

Alarm input port 1 (four inputs)

Pin 1: The first external alarm input signal

Pin 2: Grounding end for the first alarm input signal

Pin 3: The second external alarm input signal

Pin 4: The third external alarm input signal

Pin 5: Grounding end for the second alarm input signal

Pin 6: Grounding end for the third alarm input signal

Pin 7: The fourth external alarm input signal

Pin 8: Grounding end for the fourth alarm input signal



103


Port

Description

Connector Type


ALMI2/EXT

Alarm input port 2 (two inputs)/Outdoor cabinet monitoring port

Pin 1: The first external alarm input signal

Pin 2: Grounding end for the first alarm input signal

Pin 3: Receiving outdoor cabinet monitoring signal (-)

Pin 4: The third external alarm input signal

Pin 5: Grounding end for the second alarm input signal

Pin 6:Receiving outdoor cabinet monitoring signal (+)

Pin 7: Transmitting outdoor cabinet monitoring signal (-)

Pin 8: Transmitting outdoor cabinet monitoring signal (+)

SYNC

Reserved - - -

TOD0

Reserved - - -

TOD1

Reserved - - -

Currently, the port indicated by silkscreen "EXT" does not function.





ACT (yellow) On or blinking

The port is receiving or transmitting data.


Labels

The front panel has an ESD label.



104



7.1.6 Valid SlotsThe AUX can be inserted in slots 1-6 in the chassis. The logical slots of the AUX on the NMS are the same as its physical slots.



Table 7-4 lists the technical specifications of the AUX.

Table 1-1 Technical specifications of the AUX

Item Performance

Ports F1/S1 64 kbit/s synchronous transparent data port or 19.2 kbit/s asynchronous transparent data port

See Table 7-5 and Table 7-6.

PHONE Orderwire phone port See Table 7-7.

ALMO Alarm output port Not involved

ALMI1 Alarm input port 1 (four inputs)

Not involved

ALMI2/EXT

Alarm input port 2 (two inputs)/Outdoor cabinet monitoring port

For the outdoor cabinet monitoring port, seeTable 7-8.

SYNC Reserved Not involved

TOD0 Reserved Not involved

TOD1 Reserved Not involved


Weight 0.30 kg




105


Table 1-2 Specifications of synchronous data ports supported by the OptiX OSN 550

Item Performance

Transmission channel Byte F1 in the SDH overhead

Bit rate (kbit/s) 64

Port type Codirectional

Characteristics of ports Complies with ITU-T G.703

Table 1-3 Specifications of asynchronous data ports supported by the OptiX OSN 550

Item Performance

Transmission channel User-defined byte in the SDH overhead

Bit rate (kbit/s) ≤ 19.2

Characteristics of ports Complies with RS-232

Table 1-4 Specifications of orderwire ports supported by the OptiX OSN 550

Item Performance

Transmission channel Bytes E1 and E2 in the SDH overhead

Orderwire type Addressing call

Pair in each direction One symmetrical pair

Impedance (ohm) 600

Table 1-5 Outdoor cabinet monitoring ports supported by the OptiX OSN 550

Item Performance

Characteristics of ports Complies with RS-485

7.2 FANThe FAN is a fan board that dissipates heat for the chassis by means of air cooling.


The functional version of the FAN is TNM1.




106


The FAN adjusts the fan rotating speed, and detects and reports the fan status.


The FAN consists of a fan unit, a power unit, and a communication monitoring unit.

7.2.4 Front Panel


7.2.5 Valid Slots

The FAN can be inserted in slot 93 in the chassis. The logical slot of the FAN on the NMS is the same as its physical slot.


This section describes the board specifications, including dimensions, weight, and power consumption.

7.2.1 Version DescriptionThe functional version of the FAN is TNM1.

7.2.2 Functions and FeaturesThe FAN adjusts the fan rotating speed, and detects and reports the fan status.

Table 7-9 lists the functions and features that the FAN supports.

Table 1-6 Functions and features that the FAN supports


Board

Power input Accesses two +12 V power supplies from the active and standby system control, switching, and timing boards. The two +12 V power supplies provide 1+1 backup for each other.

Number of fans 6

Intelligent fan speed adjustment

Supported

Protection Provides soft-start for the power supply of the fans and protects fans against overcurrent.



107



Board

OM features Reports the information about the fan rotating speed, alarms, version number, and board in-position status.

Reports specific alarms when a fan fails or is aged.

Detects the power supply status of a fan, and reports specific alarms when the power supplied to a fan fails.

Reports specific alarms when the FAN board is offline and stops detecting fan status if the FAN board is offline.

Supports intelligent fan speed adjustments, fan speed adjustments in specific areas, and fan shut-down at low temperature. Therefore, when the ambient temperature is lower than a threshold (determined by the actual ambient temperature and fan gear interval), fans automatically work at the lowest gear.

Supports hot board swapping.

7.2.3 Working Principle and Signal FlowThe FAN consists of a fan unit, a power unit, and a communication monitoring unit.


Figure 1-1 Functional block diagram of the FAN

Fan unit Power unit

Communicationmonitoring unit


Backplane

12 V

Communicationdetection signal

Communicationdetection signal

12 V

12 V

Power Unit Receives +12 V power from the backplane.

Provides the fan power with soft-start and overcurrent protection functions.



108


Fan Unit

Six air-cooling fans dissipate the heat generated by the system.

Communication Monitoring Unit Detects the manufacturing information, PCB version information, and ambient

temperature of the FAN, and reports the information to the system control and communication unit.

Detects the fan rotating speed and adjusts the speed according to the pulse-width modulation signal from the system control and communication unit.

The system adjusts the fan rotating speed based on the working temperature, as listed in Table 7-10.

Table 1-1 Adjustment of the fan rotating speed

Working Temperature Rotating Speed

≤ 25°C 3200 rounds/minute

25°C to 60°C Linear increase in accordance with the temperature

≥ 60°C 16000 rounds/minute


Front Panel Diagram

Figure 7-3 shows the front panel of the FAN.



109


Figure 1-1 Front panel of the FAN

FAN

CRIT

MAJ

MIN

OSN 550OptiX

Indicators

The front panel of the FAN has the following indicators: FAN, CRIT, MAJ, and MIN. For status explanation for the indicators, see Indicator Status Explanation.

The CRIT, MAJ, or MIN indicator on the front panel of the FAN indicates the current alarm severity of the subrack.

ESD Wrist Strap Jack

An ESD wrist strap needs to be connected to the ESD wrist strap jack to achieve the proper grounding of the human body.

Labels

The front panel of the FAN has the following labels:

ESD protection label: indicates that the equipment is static-sensitive.

Fan warning label: warns you not to touch fan leaves before the fan stops.

7.2.5 Valid SlotsThe FAN can be inserted in slot 93 in the chassis. The logical slot of the FAN on the NMS is the same as its physical slot.



110


7.2.6 Technical SpecificationsThis section describes the board specifications, including dimensions, weight, and power consumption.

Table 7-11 lists the technical specifications of the FAN.

Table 1-1 Technical specifications of the FAN

Item Performance


Weight 0.30 kg

Power consumption Room temperature: 12.0 W

High temperature: 29.6 W



111

OptiX OSN 550 Multi-Service CPE Optical Transmission SystemHardware Description 8 Power Boards

8 Power Boards

8.1 PIUThe PIU is a power interface board. The OptiX OSN 550 supports two PIUs, each of which accesses one -48 V/-60 V DC power supply.


The functional version of the PIU is TND1.


The PIU supports power access, power protection, surge protection status monitoring, and information reporting.


This section describes the working principle and signal flow of the PIU.

8.1.4 Front Panel

There are indicators, power access ports, and a label on the front panel.

8.1.5 Valid Slots

The PIU can be inserted in slots 91 and 92. The logical slots of the PIU on the NMS are the same as its physical slots.


This section describes the board specifications, including dimensions, weight, power consumption, and input voltage.

8.1.1 Version DescriptionThe functional version of the PIU is TND1.

8.1.2 Functions and FeaturesThe PIU supports power access, power protection, surge protection status monitoring, and information reporting.

Table 8-1 lists the functions and features that the PIU supports.



112


Table 1-2 Functions and features that the PIU supports


Basic functions Power access Two PIUs are provided and each accesses one -48 V DC or -60 V DC power input.

Maximum power supply capability

The maximum power supply capability of each input is 550 W.

Maximum current

15 A

Power output The PIU provides other boards with -48 V power.

Protection Protection mode

1+1 HSB

Power protection

Protection against overcurrent

Protection against short circuits

Surge protection

Supported

Detection functions Input power detection

Surge protection status detection

Temperature detection

Detection of input overvoltage, input undervoltage, and output overvoltage

Maintenance features Hot board swapping

8.1.3 Working Principle and Signal FlowThis section describes the working principle and signal flow of the PIU.



113



Figure 1-1 Functional block diagram of the PIU

-48 V/-60 V


Backplane

-48 V

+3.3 V

Detectionsignal Detection signal

Protection anddetection unit

EMI fi lteringunit

Communicationcontrol unit

Board operating in distributedpower supply mode

Protection and Detection Unit

The protection and detection unit primarily protects and detects the PIU. It performs the following functions:

Provides protection against lightning strike and surge.

Detects whether the surge-protection circuit fails and reports a surge-protection failure alarm if there is any.

Monitors PIU temperature in real time and reports it to the system control and communication unit through the communication control unit.

EMI Filtering Unit

The EMI filtering unit performs electro-magnetic interference (EMI) filtering.

DC/DC Unit

The DC/DC unit converts the input -48 V power into the voltages that each part of the system requires. The DC/DC unit performs the following functions:

Converts -48 V power into +3.3 V power and supplies +3.3 V power to the communication control unit of the PIU.

Converts -48 V power into +3.3 V power and supplies +3.3 V power to other boards.

Converts -48 V power into +5.0 V power and supplies +5.0 V power to the power detection unit of the PIU.

Communication Control Unit

The communication control unit controls the communication between the system control and communication unit and the PIU and reports the following information to the system control and communication unit:

PIU manufacturing information

PCB version information



114


Surge-protection failure information

PIU temperature

8.1.4 Front PanelThere are indicators, power access ports, and a label on the front panel.

Front Panel Diagram

Figure 1-1 Front panel of the PIU-4

8V-6

0VP

WR

NE

G(-

)R

TN

(+)

Indicators

The front panel of the PIU has the following indicator: PWR. For status explanation for the indicator, see Indicator Status Explanation.

Ports

The PIU accesses one power supply. Table 8-2 lists the types of the ports on the PIU and their respective usage.

Table 1-1 Description of the ports on the PIU

Port Description Connector Type Required Cable

NEG1(-) -48 V power input port

2 mm HM power connector, 2x2 pins

11.2 DC Power Cable

RTN1(+) BGND power input port

Labels

Power caution label: instructs you to read related instructions before performing any power-related tasks.



115


Do not remove or install a PIU while the equipment is being powered on. That is, turn off all the power supplies to the PIU before removing or installing it.

8.1.5 Valid SlotsThe PIU can be inserted in slots 91 and 92. The logical slots of the PIU on the NMS are the same as its physical slots.

8.1.6 Technical SpecificationsThis section describes the board specifications, including dimensions, weight, power consumption, and input voltage.

Table 8-3 lists the technical specifications of the PIU.

Table 1-1 Technical specifications of the PIU

Item Performance


Weight 0.12 kg


Input voltage -38.4 V to -72.0 V

8.2 APIUThe APIU is an AC power interface board and supplies 100 V to 240 V AC power to the equipment.


The functional version of the APIU is TNF1.


The APIU supports access of 100 V to 240 V AC power and converts it into -53.5 V DC power.


This section describes the working principle and signal flow of the APIU.

8.2.4 Front Panel

There are indicators, power access ports, and switches on the front panel.

8.2.5 Valid Slots



116


The APIU can be inserted in two slot pairs, namely, slots 2 and 4 and slots 4 and 6. Slots 4 and 6 are recommended.


This section describes the board specifications, including dimensions, weight, power consumption, and input voltage.

8.2.1 Version DescriptionThe functional version of the APIU is TNF1.

8.2.2 Functions and FeaturesThe APIU supports access of 100 V to 240 V AC power and converts it into -53.5 V DC power.

Table 8-4 lists the functions and features that the APIU supports.

Table 1-2 Functions and features that the APIU supports


Basic functions Power access One APIU enables access of two 100 V to 240 V AC power inputs. One APIU supports two power modules, namely, AC1 and AC2. The two power modules are separately inserted in two boxes. Both power modules and their boxes are independently pluggable.

Supply power 200 W

Power output The APIU provides the other boards with -53.5 V power.

Protection Protection scheme

1+1 HSB

Power protection

Protection against output overvoltage

Protection against output overcurrent

Protection against short circuits in output power

Protection against overtemperature

Surge protection

Supported

Monitoring functions Input power monitoring

Surge protection status monitoring

Temperature monitoring

Monitoring of input overvoltage, input undervoltage, and output overvoltage

Maintenance features Hot swapping



117


8.2.3 Working Principle and Signal FlowThis section describes the working principle and signal flow of the APIU.


Figure 1-1 Functional block diagram of the APIU


Backplane

-53.5 V

+3.3 V

Detectionsignal Detection signal

Protection anddetection unit

EMI filteringunit

Communicationcontrol unit

Board operating in distributedpower supply mode

100~220V

Protection and Detection Unit

The protection and detection unit primarily protects and detects the APIU. It performs the following functions:

Provides protection against lightning strike and surge.

Detects whether the surge-protection circuit fails and reports a surge-protection failure alarm if there is any.

Monitors APIU temperature in real time and reports it to the system control and communication unit through the communication control unit.

EMI Filtering Unit

The EMI filtering unit performs electro-magnetic interference (EMI) filtering.

Communication Control Unit

The communication control unit controls the communication between the system control and communication unit and the APIU and reports the following information to the system control and communication unit:

APIU manufacturing information

PCB version information

Surge-protection failure information

APIU temperature

8.2.4 Front PanelThere are indicators, power access ports, and switches on the front panel.



118


Front Panel Diagram

Figure 1-1 Front panel of the APIU

ON

OFF

INPUT

AC1

APIUON

OFF

INPUT

OUTPUT

APIU

OUTPUT

～100-240V;50/60Hz;3.5A ～100-240V;50/60Hz;3.5A

AC2

Indicators

The front panel of the APIU has the INPUT and OUTPUT indicators. For status explanation for the indicators, see Indicator Status Explanation.

Ports

The APIU enables access of two power supplies. Table 8-5 lists the types of the ports on the APIU and their respective usage.

Table 1-1 Description of the ports on the APIU

Port Description Connector Type Required Cable

~100-240V;50/60Hz;3.5A

Enables access of 100 V to 240 V AC power.

Three-phase socket 11.3 AC Power Cable

Switches

The front panel of the APIU has two ON/OFF switches and they control the two AC power ports.

8.2.5 Valid SlotsThe APIU can be inserted in two slot pairs, namely, slots 2 and 4 and slots 4 and 6. Slots 4 and 6 are recommended.

8.2.6 Technical SpecificationsThis section describes the board specifications, including dimensions, weight, power consumption, and input voltage.

Mechanical Specifications

The mechanical specifications of the APIU are as follows:

Dimensions (H x W x D): 40.1 mm x 193.8 mm x 208.7 mm

Weight: 1.93 kg



119


Power Consumption At room temperature (25°C): 20.0 W

At high temperature (55°C): 30.0 W

Input Voltage

Input voltage range: 100 V to 240 V AC power

Output Voltage

Output voltage: -53.5 V DC power



120

OptiX OSN 550 Multi-Service CPE Optical Transmission SystemHardware Description 9 Filler Panel

9 Filler Panel

9.1 FunctionsA filler panel performs electromagnetic shielding for a chassis, prevents foreign objects from entering a chassis, and ensures proper circulating of cooling air in a chassis.

A filler panel provides the following functions:

Performs electromagnetic shielding for a chassis.

Prevents foreign objects from entering a chassis.

Prevents the exposure of internal voltage.

Ensures proper circulating of cooling air in a chassis.

9.2 Appearance and Valid SlotsThis section provides the front panel of and slots valid for a filler panel. The OptiX OSN 550 supports three types of filler panels with different dimensions: filler panel for the PCX and extended boards, filler panel for the PIU, and filler panel for the APIU.

Appearance

Figure 1-1 Filler panel for the PCX and extended boards



121

OptiX OSN 550 Multi-Service CPE Optical Transmission SystemHardware Description 9 Filler Panel

Figure 1-2 Filler panel for the PIU

Figure 1-3 Filler panel for the APIU

Valid Slots

lists the slots valid for a filler panel.

Table 1-1 Slots valid for a filler panel

Type of Filler Panel Valid Slot

Filler panel for the PCX and extended boards

Slots 1-8

Filler panel for the PIU Slot 91-92

Filler panel for the APIU Slots 2 and 4, slots 4 and 6



122

OptiX OSN 550 Multi-Service CPE Optical Transmission SystemHardware Description 10 Pluggable Optical Modules

10 Pluggable Optical Modules

10.1 OverviewSFP/eSFP optical modules are SFP optical transceivers and are used for SDH optical communication and Ethernet data communication. XFP optical modules are 10-gigabit SFP optical transceivers and are used for SDH optical communication and GE/10GE data communication.

Appearance

Figure 10-1 shows the appearances of an SFP/eSFP optical module, and Figure 10-2 shows the appearance of an XFP optical module.

Figure 1-1 SFP/eSFP optical module

Dimensions (H x W x D): 8.5 mm x 13.4 mm x 56.5 mm



123


Figure 1-2 XFP optical module

Dimensions (H x W x D): 8.5 mm x 18.3 mm x 78 mm

Part Number

Part numbers identify different types of optical modules and are contained in labels. Labels are attached to pluggable optical modules, as shown in the following figure.

Figure 10-3 shows a label for a pluggable optical module.

Figure 1-1 Label for a pluggable optical module

You can obtain the specifications of an optical module by querying its part number in this document.

10.2 SFP/eSFP Optical ModulesThis section lists the SFP/eSFP optical modules that the OptiX OSN 550 supports.



124


SFP/eSFP Optical Modules That the OptiX OSN 550 Supports

Table 1-1 SFP/eSFP Optical Modules That the OptiX OSN 550 Supports

Part Number Name Specification Applicable Board

34060473 1.25 Gbit/s eSFP optical module

Optical transceiver, eSFP, 1310 nm, 1.25 Gbit/s, -9 dBm, -3 dBm, -20 dBm, LC, SM, 10 km

EM6F/PCXLG/PCXGA/PCXGB


Optical transceiver, eSFP, 1310 nm, 1.25 Gbit/s, -5 dBm, 0 dBm, -23 dBm, LC, SM, 40 km



Optical transceiver, eSFP, 1550 nm, 1.25 Gbit/s, -2 dBm, 5 dBm, -23 dBm, LC, SM, 80 km


34060470 1.25 Gbit/s single-fiber bidirectional eSFP optical module

Optical transceiver, SFP, Tx 1310 nm/Rx 1490 nm, 1.25 Gbit/s, -9 dBm, -3 dBm, -19.5 dBm, LC, SM, 10 km


34060475 1.25 Gbit/s single-fiber bidirectional eSFP optical module

Optical transceiver, SFP,Tx1490 nm/Rx1310 nm, 1.25 Gbit/s, -3 dBm, -9 dBm, -19.5 dBm, LC, SM,10 km


34060276 155 Mbit/s eSFP optical module

Optical transceiver, eSFP, 1310 nm, STM-1, -15 dBm, -8 dBm, -31 dBm, LC, SM, 15 km

EF8F

34060281 Optical transceiver, eSFP, 1310 nm, STM-1, -5 dBm, 0 dBm, -37 dBm, LC, SM, 40 km

EF8F

34060282 Optical transceiver, eSFP, 1550 nm, STM-1, -5 dBm, 0 dBm, -37 dBm, LC, SM, 80 km

EF8F



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34060307 Optical transceiver, eSFP(industry), 1310 nm, STM-1, -15 dBm, -8 dBm, -31 dBm, LC, SM, 15 km

EF8F

34060308 Optical transceiver, eSFP(industry), 1310 nm, STM-1, -5 dBm, 0 dBm, -37 dBm, LC, SM, 40 km

EF8F

34060309 Optical transceiver, eSFP(industry), 1550 nm, STM-1, -5 dBm, 0 dBm, -37 dBm, LC, SM, 80 km

EF8F

34060363 Optical transceiver, eSFP, Tx 1310 nm/Rx 1550 nm, STM-1, -15 dBm, -8 dBm, -32 dBm, LC/PC, SM, 15 km

EF8F

34060364 Optical transceiver, eSFP, Tx 1550 nm/Rx 1310 nm, STM-1, -15 dBm, -8 dBm, -32 dBm, LC/PC, SM, 15 km

EF8F

34060328 Optical transceiver, eSFP, Tx 1310 nm/Rx 1550 nm, STM-1, -5 dBm, 0 dBm, -32 dBm, LC/PC, SM, 40 km

EF8F

34060329 Optical transceiver, eSFP, Tx 1550 nm/Rx 1310 nm, STM-1, -5 dBm, 0 dBm, -32 dBm, LC/PC, SM, 40 km

EF8F



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Optical module specifications are explained as follows in sequence: name, encapsulation form, operating wavelength, rate, minimum output optical power, maximum output optical power, receiver sensitivity, optical interface type, optical fiber type, and transmission distance.

10.3 XFP Optical ModulesThis section lists the XFP optical modules that the OptiX OSN 550 supports.

XFP Optical Modules That the OptiX OSN 550 Supports

Table 1-1 XFP Optical Modules That the OptiX OSN 550 Supports


34060313 9.95 Gbit/s to 10.71 Gbit/s XFP optical module

Optical transceiver, XFP, 1310 nm, 9.95 Gbit/s to 10.71 Gbit/s, -6 dBm, -1 dBm, -14.4 dBm, LC, SM, 10 km

PCXLX/PCXX


Optical transceiver, XFP, 1550 nm, 9.95 Gbit/s to 11.1 Gbit/s, -1 dBm, 2 dBm, -15 dBm, LC, SM, 40 km

PCXLX/PCXX


Optical transceiver, XFP, 1550 nm, 9.95 Gbit/s to 11.1 Gbit/s, 0 dBm, 4 dBm, -24 dBm, LC, SM, 80 km

PCXLX/PCXX

Optical module specifications are explained as follows in sequence: name, encapsulation form, operating wavelength, rate, minimum output optical power, maximum output optical power, receiver sensitivity, optical interface type, optical fiber type, and transmission distance.



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OptiX OSN 550 Multi-Service CPE Optical Transmission SystemHardware Description 11 Cables

11 Cables

11.1 Fiber JumperA fiber jumper has one connector at each end.

A fiber jumper transmits optical signals. One end of the fiber jumper has an LC/PC connector that is connected to an SDH optical port or GE optical port on the OptiX OSN 550. The connector at the other end of the fiber jumper varies depending on the type of the interconnected optical port.

Types of Fiber Jumpers

Table 1-1 Types of fiber jumpers

Connector 1 Connector 2 Cable

LC/PC FC/PC 2 mm single-mode fiber

2 mm multi-mode fiber

LC/PC LC/PC 2 mm single-mode fiber

2 mm multi-mode fiber

Fiber Connectors

The following figures show two common types of fiber connectors: LC/PC connector and FC/PC connector.



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Figure 1-1 LC/PC connector

LC/PCconnector

Protective cap

Figure 1-2 FC/PC connector

Protective cap

FC/PC connector

11.2 DC Power CableA DC power cable connects the PIU board in the chassis to a power supply device for access of power to the chassis.



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Cable Diagram

Figure 1-1 DC power cable


Table 1-1 Power cable specifications

Model Cable Terminal

6 mm2 power cable and terminal

Power cable, 450 V/750 V, H07Z-K, 6 mm2, blue/black, low smoke zero Halogen cable

Common terminal, single cord end terminal, 6 mm2, 30 A, tin plating, insertion depth of 12 mm, blue

For the OptiX OSN 550, power cables with a 6 mm2 cross-sectional area can extend for a maximum distance of 43 meters.

11.3 AC Power CableAn AC power cable connects the APIU board in the chassis to a power supply device for access of AC power to the chassis.

Cable Diagram

Figure 1-1 AC power cable



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Specifications of an AC power cable connector used on the OptiX OSN 550: C13, left angle, female

11.4 PGND CableA PGND cable connects the grounding point of an OptiX OSN 550 chassis to the grounding point of external equipment so that the chassis and external equipment share the same ground.

Cable Diagram

Figure 1-1 PGND cable

2

Main label

H.S.tubeCable tie1

L

1. Bare crimping terminal, OT 2. Bare crimping terminal, OT

11.5 E1/T1 CableAn E1/T1 cable uses 2 mm HM connectors and can transmit a maximum of 21 E1/T1 signals.

There are two types of E1/T1 cables: 75-ohm coaxial cables and 120-ohm twisted pair cables.



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Cable Diagram

Figure 1-1 75-ohm/120-ohm E1/T1 cable

Main label

1

W

X1 A

View A

Pos.1

Pos.96

Cable connector, Anea,96-pin, female

1. Cable connector, Anea 96, female

A 75-ohm E1 cable and a 120-ohm E1 cable have the same appearance.

The core diameter of a 75-ohm E1/T1 cable is 1.6 mm. Therefore, use a crimping tool with an opening of 2.5 mm or 1.7 mm to attach the end of the 75-ohm E1/T1 cable on the DDF frame with a 75-1-1 coaxial connector.

Pin Assignments

Table 11-3 provides details about the pin assignments for a 75-ohm E1/T1 cable.

Table 1-1 Pin assignments for a 75-ohm 21xE1/T1 cable

Pin Core

Serial No.

Label

Pin Core

Serial No.

Label

Pin Core

Serial No.

Label

1 Tip 1 R0 15 Tip 15 R7 53 Tip 29 R14

2 Ring 16 Ring 54 Ring

25 Tip 2 T0 39 Tip 16 T7 77 Tip 30 T14


3 Tip 3 R1 17 Tip 17 R8 55 Tip 31 R15


27 Tip 4 T1 41 Tip 18 T8 79 Tip 32 T15



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Pin Core

Serial No.

Label

Pin Core

Serial No.

Label

Pin Core

Serial No.

Label


5 Tip 5 R2 19 Tip 19 R9 57 Tip 33 R16


29 Tip 6 T2 43 Tip 20 T9 81 Tip 34 T16


7 Tip 7 R3 21 Tip 21 R10 59 Tip 35 R17


31 Tip 8 T3 45 Tip 22 T10 83 Tip 36 T17


9 Tip 9 R4 23 Tip 23 R11 61 Tip 37 R18


33 Tip 10 T4 47 Tip 24 T11 85 Tip 38 T18


11 Tip 11 R5 49 Tip 25 R12 63 Tip 39 R19


35 Tip 12 T5 73 Tip 26 T12 87 Tip 40 T19


13 Tip 13 R6 51 Tip 27 R13 65 Tip 41 R20


37 Tip 14 T6 75 Tip 28 T13 89 Tip 42 T20


Table 11-4 provides details about the pin assignments for a 120-ohm E1/T1 cable.



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Table 1-2 Pin assignments for a 120-ohm 21xE1/T1 cable

Ribbon Color

Pin

Color of the Core

Label

Relationship

Ribbon Color

Pin

Color of the Core

Label

Relationship

Ribbon Color

Pin

Color of the Core

Label

Relationship

Blue

1 White

R0 Pair

Orange

15 White

R7 Pair

Green

53 White

R14

Pair

2 Blue

16 Blue

54 Blue

25 White

T0 Pair

39 White

T7 Pair

77 White

T14

Pair

26 Orange

40 Orange

78 Orange

3 White

R1 Pair

17 White

R8 Pair

55 White

R15

Pair

4 Green

18 Green

56 Green

27 White

T1 Pair

41 White

T8 Pair

79 White

T15

Pair

28 Brown

42 Brown

80 Brown

5 White

R2 Pair

19 White

R9 Pair

57 White

R16

Pair

6 Gray

20 Gray

58 Gray

29 Red

T2 Pair

43 Red

T9 Pair

81 Red

T16

Pair

30 Blue

44 Blue

82 Blue

7 Red

R3 Pair

21 Red

R10

Pair

59 Red

R17

Pair

8 Orange

22 Orange

60 Orange

31 Red

T3 Pair

45 Red

T10

Pair

83 Red

T17

Pair



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Ribbon Color

Pin

Color of the Core

Label

Relationship

Ribbon Color

Pin

Color of the Core

Label

Relationship

Ribbon Color

Pin

Color of the Core

Label

Relationship

32 Green

46 Green

84 Green

9 Red

R4 Pair

23 Red

R11

Pair

61 Red

R18

Pair

10 Brown

24 Brown

62 Brown

33 Red

T4 Pair

47 Red

T11

Pair

85 Red

T18

Pair

34 Gray

48 Gray

86 Gray

11 Black

R5 Pair

49 Black

R12

Pair

63 Black

R19

Pair

12 Blue

50 Blue

64 Blue

35 Black

T5 Pair

73 Black

T12

Pair

87 Black

T19

Pair

36 Orange

74 Orange

88 Orange

13 Black

R6 Pair

51 Black

R13

Pair

65 Black

R20

Pair

14 Green

52 Green

66 Green

37 Black

T6 Pair

75 Black

T13

Pair

89 Black

T20

Pair

38 Brown

76 Brown

90 Brown


Table 11-5 lists the technical specifications for E1/T1 cables used on the OptiX OSN 550.



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Table 1-1 Technical specifications for E1/T1 cables used on the OptiX OSN 550

Item Description

Connector type Anea 96

Number of cores 42 cores/pair

Fireproof class IEC60332-3C

11.6 E3/T3 CableAn E3/T3 cable receives and transmits E3/T3 signals. One end of the E3/T3 cable has an SMB connector that is connected to an E3/T3 electrical interface board. The other end of the E3/T3 cable is connected to a DDF and its connector needs to be prepared on site as required.

Structure

Figure 1-1 Structure of an E3/T3 cable

1. Coaxial connector - SMB 2. Main label 3. Coaxial cable

Pin Assignments

None.


Item Description

Connector Coaxial connector, SMB connector, 75 ohms, straight, female

Cable I Coaxial cable, 75 ohms, 3.9 mm, 2.1 mm, 0.34 mm, shielded

Diameter of the shield layer (3.9 mm), diameter of the internal insulation layer (2.1 mm), diameter of the internal conductor (0.34 mm)

Available lengths: 10 m, 15 m, 20 m, 30 m

Cable II Coaxial cable, 75 ohms, 4.4 mm, 2.4 mm, 0.4 mm, shielded, gray


Available lengths: 15 m, 20 m, 25 m, 30 m, 40 m



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Item Description

Cable III Coaxial cable, 75 ohms, 6.7 mm, 3.8 mm, 0.61 mm, shielded, gray


Available lengths: 15 m, 20 m, 25 m, 30 m, 130 m

Cable IV Coaxial cable, 75 ohms, 5.80 mm, 3.71 mm, 0.643 mm, black


Available length: 30 m

Fireproof class

CM

11.7 Network CableA network cable connects two pieces of Ethernet equipment. Both ends of the network cable are terminated with an RJ-45 connector.

Interfaces Using RJ-45 Connectors

The following types of interfaces use RJ-45 connectors:

Medium dependent interfaces (MDIs): used by terminal equipment, for example, network card

MDI-Xs: used by network equipment

The difference between MDIs and MDI-Xs is with regard to pin assignments. Table 11-6 provides details about the pin assignments for MDIs. Table 11-7 provides details about the pin assignments for MDI-Xs.

Different cables are used between the interfaces using RJ-45 connectors.

A straight-through cable is used between an MDI and an MDI-X.

A crossover cable is used between two MDIs.

A crossover cable is used between two MDI-Xs.

The NMS/COM port and Ethernet electrical service ports of the equipment support the auto-MDI/MDI-X mode. Therefore, straight-through cables and crossover cables can be used to connect the NMS/COM port and Ethernet electrical service ports to MDIs or MDI-Xs.



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Table 1-1 Pin assignments for an RJ-45 port in MDI mode











Table 1-2 Pin assignments for an RJ-45 port in MDI-X mode












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Cable Diagram

Figure 1-1 Straight-through cable

1. Network port connector, RJ-45

2. Label 1 3. Main label 4. Label 2

Figure 1-2 Crossover cable

1. Network port connector, RJ-45 2. Label 1 3. Main label 4. Network cable 5. Label 2

Pin Assignments

Table 1-1 Pin assignments for a straight-through cable

Connector X1 Connector X2 Color Relationship

X1.1 X2.1 White/Orange Twisted pair

X1.2 X2.2 Orange



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X1.3 X2.3 White/Green Twisted pair

X1.6 X2.6 Green

X1.4 X2.4 Blue Twisted pair

X1.5 X2.5 White/Blue

X1.7 X2.7 White/Brown Twisted pair

X1.8 X2.8 Brown

Table 1-2 Pin assignments for a crossover cable


X1.6 X2.2 Orange Twisted pair

X1.3 X2.1 White/Orange

X1.1 X2.3 White/Green Twisted pair

X1.2 X2.6 Green

X1.4 X2.4 Blue Twisted pair

X1.5 X2.5 White/Blue

X1.7 X2.7 White/Brown Twisted pair

X1.8 X2.8 Brown


Item Description

Connector X1/X2 Network port connector, RJ-45 connector, 8-pin, 8-bit, shielded, connector, 24 to 26 AWG, CAT 6/configured with the SFTP network cable

Cable type Straight-through cable: communication cable, 100±15 ohms, CAT5E SFTP 24 AWG, 8 cores, PANTONE 445U

Crossover cable: communication cable, 100±5 ohms, CAT5E SFTP 24 AWG, 8 cores, PANTONE 646U

Number of cores 8 cores

Fireproof class CM

Length Straight-through cable: 5 m, 10 m, 20 m, 30 m

Crossover cable: 5 m, 30 m



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OptiX OSN 550 Multi-Service CPE Optical Transmission SystemHardware Description 12 Parameter Settings

12 Parameter Settings

To use the functions of a board, first set parameters related to the board. This section provides hyperlinks of board parameter settings.

Table 12-1 lists references for parameter settings on boards that the OptiX OSN 550 supports.

Table 1-1 References for parameter settings on boards that the OptiX OSN 550 supports

Board Type Board Involved Parameter Setting Reference

System control, switching, and timing board

PCX Parameters for Configuring system control, switching, and timing board

Packet processing boards

EM6T, EM6F, EF8F Parameters for Configuring Ethernet Ports

MD1 Parameters for Configuring CES Ports

SDH boards SL1D, SL4D, SL1Q Parameters for Configuring SDH Boards

PDH boards SP3D, PL3T Parameters for Configuring PDH Board

Auxiliary board AUX Parameters for Configuring auxiliary board



141

OptiX OSN 550 Multi-Service CPE Optical Transmission SystemHardware Description A Glossary and Acronyms

A Glossary and Acronyms

Terms and abbreviations are listed in an alphabetical order.

A.1 Numerics

A.2 A

A.3 B

A.4 C

A.5 D

A.6 E

A.7 F

A.8 G

A.9 H

A.10 I

A.11 J

A.12 L

A.13 M

A.14 N

A.15 O

A.16 P

A.17 Q

A.18 R

A.19 S

A.20 T

A.21 U

A.22 V



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A.23 W

A.1 Numerics1+1 protection An architecture that has one normal traffic signal, one working

SNC/trail, one protection SNC/trail and a permanent bridge. At the source end, the normal traffic signal is permanently bridged to both the working and protection SNC/trail. At the sink end, the normal traffic signal is selected from the better of the two SNCs/trails. Due to the permanent bridging, the 1+1 architecture does not allow an extra unprotected traffic signal to be provided.

100BASE-T IEEE 802.3 Physical Layer specification for a 100 Mb/s CSMA/CD local area network.

100BASE-TX IEEE 802.3 Physical Layer specification for a 100 Mb/s CSMA/CD local area network over two pairs of Category 5 unshielded twisted-pair (UTP) or shielded twisted-pair (STP) wire.

10BASE-T An Ethernet specification that uses the twisted pair cable with the transmission speed as 10 Mbit/s and the transmission distance as 100 meters.

1:N protection An architecture that has N normal service signals, N working SNCs/trails, and one protection SNC/trail. It may have one extra service signal.

1PPS Pulse per second, which, strictly speaking, is not a time synchronization signal. This is because 1PPS provides only the "gauge" corresponding to the UTC second, but does not provide the information about the day, month, or year. Therefore, 1PPS is used as the reference for frequency synchronization. On certain occasions, 1PPS can also be used on other interfaces for high precision timing.

3R Reshaping, Retiming, Regenerating.

A.2 AABR Available Bit Rate

AC Alternating Current

ACAP A channel configuration method, which uses two adjacent channels (a horizontal polarization wave and a vertical polarization wave) to transmit two signals.

Active/Standby switching of cross-connect board

The process in which the standby cross-connect board automatically takes the place of the active one. If there are two cross-connect boards on the SDH equipment, which are in hot back-up relation of each other, the operation reliability is improved. When both the cross-connect boards are in position, the one inserted first is in the working status. Unplug the active board, the standby one will run in the working status automatically. When the active cross-connect board fails in self-test, the board is pulled out, the board power supply fails or the board hardware operation fails, the standby cross-connect board can automatically take the place of the active one.



143


add/drop multiplexer

Network elements that provide access to all or some subset of the constituent signals contained within an STM-N signal. The constituent signals are added to (inserted), and/or dropped from (extracted) the STM-N signal as it passed through the ADM.

ADM See add/drop multiplexer

Administrative Unit

The information structure which provides adaptation between the higher order path layer and the multiplex section layer. It consists of an information payload (the higher order VC) and a AU pointer which indicates the offset of the payload frame start relative to the multiplex section frame start.

Administrative Unit Group

One or more administrative units occupying fixed, defined positions in an STM payload. An AUG consists of AU-4s.

Administrator A user who has authority to access all the Management Domains of the product. He or she has access to the whole network and to all the management functionalities.

Aging time The time to live before an object becomes invalid.

AIS Alarm Indication Signal

Alarm A message reported when a fault is detected by a device or by the network management system during the process of polling devices. Each alarm corresponds to a recovery alarm. After a recovery alarm is received, the status of the corresponding alarm changes to cleared.

Alarm automatic report

A function wherein an alarm generated on the device side is immediately and automatically reported to the NMS. After an alarm is reported, an alarm panel prompts, and the user can view the details of the alarm.

alarm cable The cable for generation of visual or audio alarms.

alarm filtering An alarm management method. Alarms are detected and reported to the NMS system, and whether the alarm information is displayed and saved is decided by the alarm filtering status. An alarm with the filtering status set to "Filter" is not displayed and saved on the NMS, but is monitored on the NE.

alarm indication A function that indicates the alarm status of an NE. On the cabinet of an NE, there are four indicators in different colors indicating the current alarm status of the NE. When the green indicator is on, the NE is powered on. When the red indicator is on, a critical alarm is generated. When the orange indicator is on, a major alarm is generated. When the yellow indicator is on, a minor alarm is generated. The ALM alarm indicator on the front panel of a board indicates the current status of the board.

Alarm indication signal

A code sent downstream in a digital network as an indication that an upstream failure has been detected and alarmed. It is associated with multiple transport layers.



144


Alarm inversion For the port that has already been configured but has no service, this function can be used to avoid generating relevant alarm information, thus preventing alarm interference. The alarm report condition of the NE port is related to the alarm inverse mode (not inverse, automatic recovery and manual recovery) setting of the NE and the alarm inversion status (Enable and Disable) setting of the port. When the alarm inversion mode of NE is set to no inversion, alarms of the port will be reported as usual no matter whatever the inversion status of the port is. When the alarm inversion mode of the NE is set to automatic recovery, and the alarm inversion state of the port is set to Enabled, then the alarm of the port will be suppressed. The alarm inversion status of the port will automatically recover to "not inverse" after the alarm ends. For the port that has already been configured but not actually loaded with services, this function can be used to avoid generating relevant alarm information, thus preventing alarm interference. When the alarm inverse mode of the NE is set as "not automatic recovery", if the alarm inversion status of the port is set as Enable, the alarm of the port will be reported.

Alarm Masking An alarm management method. Alarms that are set to be masked are not displayed on the NMS or the NMS does not monitor unimportant alarms.

Alarm Severity The significance of a change in system performance or events. According to ITU-T recommendations, an alarm can have one of the following severities: Critical, Major, Minor, Warning.

Alarm suppression

An alarm management method. Alarms that are set to be suppressed are not reported from NEs any more.

ALS See Automatic laser shutdown

APS See Automatic Protection Switching

asynchronous Pertaining to, being, or characteristic of something that is not dependent on timing.

Asynchronous Transfer Mode

A protocol for the transmission of a variety of digital signals using uniform 53 byte cells. A transfer mode in which the information is organized into cells; it is asynchronous in the sense that the recurrence of cells depends on the required or instantaneous bit rate. Statistical and deterministic values may also be used to qualify the transfer mode.

ATM See Asynchronous Transfer Mode

ATPC See Automatic Transmit Power Control

attenuation Reduction of signal magnitude or signal loss, usually expressed in decibels.

AU See Administrative Unit

AUG See Administrative Unit Group

auto-negotiation An optional function of the IEEE 802.3u Fast Ethernet standard that enables devices to automatically exchange information over a link about speed and duplex abilities..



145


Automatic laser shutdown

A technique (procedure) to automatically shutdown the output power of laser transmitters and optical amplifiers to avoid exposure to hazardous levels.

Automatic Protection Switching

Capability of a transmission system to detect a failure on a working facility and to switch to a standby facility to recover the traffic.

Automatic Transmit Power Control

A method of adjusting the transmit power based on fading of the transmit signal detected at the receiver.

A.3 Bbackplane An electronic circuit board containing circuits and sockets into which

additional electronic devices on other circuit boards or cards can be plugged.

backup A periodic operation performed on the data stored in the database for the purposes of database recovery in case that the database is faulty. The backup also refers to data synchronization between active and standby boards.

bandwidth A range of transmission frequencies that a transmission line or channel can carry in a network. In fact, it is the difference between the highest and lowest frequencies the transmission line or channel. The greater the bandwidth, the faster the data transfer rate.

BDI Backward Defect Indicator

BER See Bit Error Rate

BER tester Used to measure the bit error rate (BER) of signals during transmission.

Binding strap The binding strap is 12.7 mm wide, with one hook side (made of transparent polypropylene material) and one mat side (made of black nylon material).

BIP A method of error monitoring. With even parity an X-bit code is generated by equipment at the transmit end over a specified portion of the signal in such a manner that the first bit of the code provides even parity over the first bit of all X-bit sequences in the covered portion of the signal, the second bit provides even parity over the second bit of all X-bit sequences within the specified portion, and so on. Even parity is generated by setting the BIP-X bits so that there is an even number of 1s in each monitored partition of the signal. A monitored partition comprises all bits which are in the same bit position within the X-bit sequences in the covered portion of the signal. The covered portion includes the BIP-X.

Bit error An incompatibility between a bit in a transmitted digital signal and the corresponding bit in the received digital signal.

Bit Error Rate Ratio of received bits that contain errors. BER is an important index used to measure the communications quality of a network.

BITS See Building Integrated Timing Supply



146


bound path A parallel path with several serial paths bundled together. It improves the data throughput capacity.

BPDU See Bridge Protocol Data Unit

BPS Board Protection Switching

bridge A device that connects two or more networks and forwards packets among them. Bridges operate at the physical network level. Bridges differs from repeaters because bridges store and forward complete packets, while repeaters forward all electrical signals. Bridges differ from routers because bridges use physical addresses, while routers use IP addresses.

Bridge Protocol Data Unit

The data messages that are exchanged across the switches within an extended LAN that uses a spanning tree protocol (STP) topology. BPDU packets contain information on ports, addresses, priorities and costs and ensure that the data ends up where it was intended to go. BPDU messages are exchanged across bridges to detect loops in a network topology. The loops are then removed by shutting down selected bridges interfaces and placing redundant switch ports in a backup, or blocked, state.

broadcast The process of sending packets from a source to multiple destinations. All the ports of the nodes in the network can receive packets.

Broadcast A means of delivering information to all members in a network. The broadcast range is determined by the broadcast address.

BSC Base Station Controller

BSS Base Station Subsystem

Build-in WDM A function which integrates some simple WDM systems into products that belong to the OSN series. That is, the OSN products can add or drop several wavelengths directly.

Building Integrated Timing Supply

In the situation of multiple synchronous nodes or communication devices, one can use a device to set up a clock system on the hinge of telecom network to connect the synchronous network as a whole, and provide satisfactory synchronous base signals to the building integrated device. This device is called BITS.

BWS Backbone WDM System

A.4 Ccabling The method by which a group of insulated conductors is mechanically

assembled or twisted together.

cable trough The trough which is used for cable routing in the cabinet.

captive nut See Floating nut

CAR See committed access rate

CAS Channel Associated Signaling

CBR See Constant Bit Rate



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CBS Committed Burst Size

CCDP Co-Channel Dual Polarization

CCM Continuity Check Message

CDR Clock and Data Recovery

CDVT See Cell Delay Variation Tolerance

Cell Delay Variation Tolerance

This parameter measures the tolerance level a network interface has to aggressive sending (back-to-back or very closely spaced cells) by a connected device, and does not apply to end-systems.

Centralized alarm system

The system that gathers all the information about alarms into a certain terminal console.

CES See circuit emulation service

CFM Connectivity Fault Management

Chain network One type of network that all network nodes are connected one after one to be in series.

channel A telecommunication path of a specific capacity and/or at a specific speed between two or more locations in a network. Channels can be established through wire, radio (microwave), fiber or a combination of the three. The amount of information transmitted per second in a channel is the information transmission speed, expressed in bits per second. For example, b/s, kb/s, Mb/s, Gb/s, and Tb/s.

CIR Committed Information Rate

Circuit A combination of two transmission channels permitting transmission in both directions between two points.

circuit emulation service

A function with which the E1/T1 data can be transmitted through ATM networks. At the transmission end, the interface module packs timeslot data into ATM cells. These ATM cells are sent to the reception end through the ATM network. At the reception end, the interface module re-assigns the data in these ATM cells to E1/T1 timeslots. The CES technology guarantees that the data in E1/T1 timeslots can be recovered to the original sequence at the reception end.

CIST Common and Internal Spanning Tree

Class of Service CoS is a rule for queuing. It classifies the packets according to the service type field or the tag in packets, and specifies different priorities for them. All the nodes in DiffServ domain forwards the packets according to their priorities.

client A device that sends requests, receives responses, and obtains services from the server.

Clock Synchronization

Also called frequency synchronization. The signal frequency traces the reference frequency, but the start point does not need to be consistent.



148


Clock tracing The method to keep the time on each node being synchronized with a clock source in a network.

CLP Cell Loss Priority

CM See Configuration Management

committed access rate

A traffic control method that uses a set of rate limits to be applied to a router interface. CAR is a configurable method by which incoming and outgoing packets can be classified into Quality of Service (QoS) groups, and by which the input or output transmission rate can be defined.

Concatenation A process that combines multiple virtual containers. The combined capacities can be used a single capacity. The concatenation also keeps the integrity of bit sequence.

Configuration Data

A command file defining hardware configurations of an NE. With this file, an NE can collaborate with other NEs in an entire network. Configuration data is the key factor for normal running of an entire network.

Configuration Management

A network management function defined by the International Standards Organization (ISO). It involves installing, reinitializing & modifying hardware & software.

Configure To set the basic parameters of an operation object.

congestion An extra intra-network or inter-network traffic resulting in decreasing network service efficiency.

Connection point A reference point where the output of a trail termination source or a connection is bound to the input of another connection, or where the output of a connection is bound to the input of a trail termination sink or another connection. The connection point is characterized by the information which passes across it. A bidirectional connection point is formed by the association of a contradirectional pair.

Constant Bit Rate A kind of service categories defined by the ATM forum. CBR transfers cells based on the constant bandwidth. It is applicable to service connections that depend on precise clocking to ensure undistorted transmission.

Convergence A process in which multiple channels of low-rate signals are multiplexed into one or several channels of required signals. It refers to the speed and capability for a group of networking devices to run a specific routing protocol. It functions to keep the network topology consistent.

Convergence service

A service that provides enhancements to an underlying service in order to meet the specific requirements of users.

corrugated tube Used to protect optical fibers.

CoS See Class of Service

CPU Central Processing Unit

CRC See Cyclic Redundancy Check



149


current alarm An alarm not handled or not acknowledged after being handled.

Current Performance Data

Performance data stored currently in a register. An NE provides two types of registers, namely, 15-minute register and 24-hour register, to store performance parameters of a performance monitoring entity. The two types of registers stores performance data only in the specified monitoring period.

Cyclic Redundancy Check

A procedure used in checking for errors in data transmission. CRC error checking uses a complex calculation to generate a number based on the data transmitted. The sending device performs the calculation before transmission and includes it in the packet that it sends to the receiving device. The receiving device repeats the same calculation after transmission. If both devices obtain the same result, it is assumed that the transmission was error free. The procedure is known as a redundancy check because each transmission includes not only data but extra (redundant) error-checking values.

A.5 DData Communication Network

A communication network used in a TMN or between TMNs to support the data communication function.

Digital Data Network

A high-quality data transport tunnel that combines the digital channel (such as fiber channel, digital microwave channel, or satellite channel) and the cross multiplex technology.

DC Direct Current

DCC Data Communication Channel

DCD Data Carrier Detect

DCE Data Circuit-terminal Equipment

DCN See Data Communication Network

DDF See Digital Distribution Frame

DDN See Digital Data Network

Defect A limited interruption in the ability of an item to perform a required function.

Delay Measurement

The time elapsed since the start of transmission of the first bit of the frame by a source node until the reception of the last bit of the loopbacked frame by the same source node, when the loopback is performed at the frame's destination node.

Demultiplexing A process applied to a composite signal formed by multiplexing, for recovering the original independent signals, or groups of these signals.



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Device set A collection of multiple managed devices. By dividing managed devices into different device sets, users can manage the devices by using the U2000 in an easier way. If an operation authority over one device set is assigned to a user (user group), the authority over all the devices in the device set is assigned to the user (user group), thus making it unnecessary to set the operation authority over all the devices in a device set separately. It is recommended to configure device set by geographical region, network level, device type, or another criterion.

Differentiated Services Code Point

A marker in the header of each IP packet that prompts network routers to apply differentiated grades of service to various packet streams. It is specified by the DiffServ policy proposed by the IETF (Internet Engineering Task Force). This allows Internet and other IP-based network service providers to offer different levels of service to customers.

DiffServ A service architecture that provides the end-to-end QoS function. It consists of a series of functional units implemented at the network nodes, including a small group of per-hop forwarding behaviors, packet classification functions, and traffic conditioning functions such as metering, marking, shaping and policing.

Digital Distribution Frame

A type of equipment used between the transmission equipment and the exchange with transmission rate of 2 to 155 Mbit/s to provide the functions such as cables connection, cable patching, and test of loops that transmitting digital signals.

digital signal A signal in which information is represented by a limited number of discrete states number of discrete states (for example, high and low voltages) rather than by fluctuating levels in a continuous stream, as in an analog signal. In the pulse code modulation (PCM) technology, the 8 kHz sampling frequency is used and a byte contains 8 bits in length. Therefore, a digital signal is also referred to as a byte-based code stream. Digital signals, with simple structures and broad bandwidth, are easy to shape or regenerate, and are not easily affected by external interference.

Distributed Link Aggregation Group

A board-level port protection technology used to detect unidirectional fiber cuts and to negotiate with the opposite end. Once a link down failure occurs on a port or a hardware failure occurs on a board, the services can automatically be switched to the slave board, achieving 1+1 protection for the inter-board ports.

DLAG See Distributed Link Aggregation Group

DM See Delay Measurement

DNI See Dual Node Interconnection

domain A logical subscriber group based on which the subscriber rights are controlled.

DSCP See Differentiated Services Code Point

DSL Digital Subscriber Line

DSLAM Digital Subscriber Line Access Multiplexer



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DSR Data Set Ready

DTE Data Terminal Equipments

DTR Data Terminal Ready

Dual Node Interconnection

DNI provides an alternative physical interconnection point, between the rings, in case of an interconnection failure scenario.

DVB-ASI Digital Video Broadcast- Asynchronous Serial Interface

DVMRP Distance Vector Multicast Routing Protocol

DWDM Dense Wavelength Division Multiplexing

A.6 EE-AGGR See Ethernet aggregation

Ear bracket A piece of angle plate with holes in it on a rack. It is used to fix network elements or components.

ECC See Embedded Control Channel

EFM Ethernet in the First Mile

E-LAN A type of Ethernet service that is based on a multipoint-to-multipoint EVC (Ethernet virtual connection).

ElectroStatic Discharge

The sudden and momentary electric current that flows between two objects at different electrical potentials caused by direct contact or induced by an electrostatic field.

E-Line A type of Ethernet service that is based on a point-to-point EVC (Ethernet virtual connection).

Embedded Control Channel

A logical channel that uses a data communications channel (DCC) as its physical layer, to enable transmission of operation, administration, and maintenance (OAM) information between NEs.

EMS Element Management System

encapsulation A technology for layered protocols, in which a lower-level protocol accepts a message from a higher-level protocol and places it in the data portion of the lower-level frame. Protocol A's packets have complete header information, and are carried by protocol B as data. Packets that encapsulate protocol A have a B header, an A header, followed by the information that protocol A is carrying. Note that A could equal to B, as in IP inside IP.

Enterprise System Connection

A path protocol which connects the host with various control units in a storage system. It is a serial bit stream transmission protocol. The transmission rate is 200 Mbit/s.

Entity A part, device, subsystem, functional unit, equipment, or system that can be considered individually.

EoD See Ethernet over Dual Domains

EPL See Ethernet Private Line



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EPLAN See Ethernet virtual private LAN service

Equipment Serial Number

A string of characters that identify a piece of equipment and ensures correct allocation of a license file to the specified equipment. It is also called "equipment fingerprint".

ESCON See Enterprise System Connection

ESD See ElectroStatic Discharge

ESD jack Electrostatic discharge jack. A hole in the cabinet or shelf, which connect the shelf or cabinet to the insertion of ESD wrist strap.

ESD wrist strap Used to prevent the ElectroStatic Discharge (ESD) when you touch or operate a device or component.

ESN See Equipment Serial Number

Ethernet A LAN technology that uses Carrier Sense Multiple Access/Collision Detection. The speed of an Ethernet interface can be 10 Mbit/s, 100 Mbit/s, 1000 Mbit/s or 10000 Mbit/s. An Ethernet network features high reliability and is easy to maintain.

Ethernet aggregation

A type of Ethernet service that is based on a multipoint-to-point EVC (Ethernet virtual connection).

Ethernet Alarm Group

The Ethernet alarm group periodically obtain the statistics value to compare with the configured threshold. If the value exceeds the threshold, an event is reported.

Ethernet over Dual Domains

A type of boards. EoD boards bridge the PSN and TDM networks, enabling Ethernet service transmission across PSN and TDM networks.

Ethernet Private LAN service

A type of Ethernet service provided by SDH, PDH, ATM, or MPLS networks. This service is carried over a dedicated bridge and point-to-multipoint connections.

Ethernet Private Line

A type of Ethernet service that is provided with dedicated bandwidth and point-to-point connections on an SDH, PDH, ATM, or MPLS server layer network.

Ethernet virtual private LAN service

A type of Ethernet service provided by SDH, PDH, ATM, or MPLS networks. This service is carried over a shared bridge and point-to-multipoint connections.

Ethernet virtual private line

A type of Ethernet service provided by SDH, PDH, ATM, or MPLS networks. This service is carried over a shared bridge and point-to-point connections.

ETSI European Telecommunications Standards Institute

EVPL See Ethernet virtual private line

EVPLAN See Ethernet virtual private LAN service

Exercise Switching

An operation to check whether the protection switching protocol functions properly. The protection switching is not really performed.



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Exerciser - Ring This command exercises ring protection switching of the requested channel without completing the actual bridge and switch. The command is issued and the responses are checked, but no working traffic is affected.

Extended ID The number of the subnet that an NE belongs to, for identifying different network segments in a WAN. The physical ID of an NE is comprised of the NE ID and extended ID.

extra traffic The traffic that is carried over the protection channels when that capacity is not used for the protection of working traffic. Extra traffic is not protected.

A.7 FFailure If the fault persists long enough to consider the ability of an item with

a required function to be terminated. The item may be considered as having failed; a fault has now been detected.

Fairness A feature in which for any link specified in a ring network, the source node is provided with certain bandwidth capacities if the data packets transmitted by the source node are constrained by the fairness algorithm.

fairness algorithm

An algorithm designed to ensure the fair sharing of bandwidth among stations in the case of congestion or overloading.

fault A failure to implement the function while the specified operations are performed. A fault does not involve the failure caused by preventive maintenance, insufficiency of external resources or intentional settings.

FC See Fiber Channel

FD See frequency diversity

FDDI See fiber distributed data interface

FDI Forward Defect Indicator

FDV See Frame Delay Variation

FE Fast Ethernet

feature code Code used to select/activate a service feature (for example, forwarding, using two or three digit codes preceded by * or 11 or #, and which may precede subsequent digit selection).

FEC See forwarding equivalence class

FEC See Forward Error Correction

fiber patch cord A kind of fiber used for connections between the subrack and the ODF, and for connections between subracks or inside a subrack.



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Fiber Channel A high-speed transport technology used to build storage area networks (SANs). Fiber channel can be on the networks carrying ATM and IP traffic. It is primarily used for transporting SCSI traffic from servers to disk arrays. Fiber channel supports single-mode and multi-mode fiber connections. Fiber channel signaling can run on both twisted pair copper wires and coaxial cables. Fiber channel provides both connection-oriented and connectionless services.

Fiber Connect A new generation connection protocol which connects the host to various control units. It carries single byte command protocol through the physical path of fiber channel, and provides higher rate and better performance than ESCON.

Fiber Connector A device installed at the end of a fiber, optical source or receive unit. It is used to couple the optical wave to the fiber when connected to another device of the same type. A connector can either connect two fiber ends or connect a fiber end and a optical source (or a detector).

fiber distributed data interface

A standard developed by the American National Standards Institute (ANSI) for high-speed fiber-optic local area networks (LANs). FDDI provides specifications for transmission rates of 100 megabits (100 million bits) per second on networks based on the token ring network.

fiber/cable General name of optical fiber and cable. It refers to the physical entities that connect the transmission equipment, carry transmission objects (user information and network management information) and perform the transmission function in the transmission network. The optical fiber transmits optical signal, while the cable transmits electrical signal. The fiber/cable between NEs represents the optical fiber connection or cable connection between NEs. The fiber/cable between SDH NEs represents the connection relationship between NEs. At this time, the fiber/cable is of optical fiber type.

FICON See Fiber Connect

FIFO First In First Out

Floating nut Floating nuts (or as they are more correctly named, 'tee nuts') have a range of uses but are more commonly used in the hobby for engine fixing (securing engine mounts to the firewall), wing fixings, and undercarriage fixing.

Flow An aggregation of packets that have the same characteristics. On the network management system or NE software, flow is a group of classification rules. On boards, it is a group of packets that have the same quality of service (QoS) operation.

FLR See Frame loss ratio

Forced switch For normal traffic signals, switches normal traffic signal to the protection section, unless an equal or higher priority switch command is in effect or SF condition exists on the protection section, by issuing a forced switch request for that traffic signal.

Forward Error Correction

A bit error correction technology that adds the correction information to the payload at the transmit end. Based on the correction information, the bit errors generated during transmission are corrected at the receive end.



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forwarding equivalence class

A class-based forwarding technology that classifies the packets with the same forwarding mode. Packets with the same FEC are processed similarly on an MPLS network. The division of FECs is flexible, and can be a combination of the source address, destination address, source port, destination port, protocol type, and VPN.

FPGA Field Programmable Gate Array

frame A frame, starting with a header, is a string of bytes with a specified length. Frame length is represented by the sampling circle or the total number of bytes sampled during a circle. A header comprises one or a number of bytes with pre-specified values. In other words, a header is a code segment that reflects the distribution (diagram) of the elements pre-specified by the sending and receiving parties.

Frame Delay Variation

A measurement of the variations in the frame delay between a pair of service frames, where the service frames belong to the same CoS instance on a point to point ETH connection.

Frame loss ratio A ratio, is expressed as a percentage, of the number of service frames not delivered divided by the total number of service frames during time interval T, where the number of service frames not delivered is the difference between the number of service frames arriving at the ingress ETH flow point and the number of service frames delivered at the egress ETH flow point in a point-to-point ETH connection.

Free-run mode An operating condition of a clock, the output signal of which is strongly influenced by the oscillating element and not controlled by servo phase-locking techniques. In this mode the clock has never had a network reference input, or the clock has lost external reference and has no access to stored data, that could be acquired from a previously connected external reference. Free-run begins when the clock output no longer reflects the influence of a connected external reference, or transition from it. Free-run terminates when the clock output has achieved lock to an external reference.

frequency diversity

A diversity scheme in which two or more microwave frequencies with a certain frequency interval are used to transmit/receive the same signal and selection is then performed between the two signals to ease the impact of fading.

FTP File Transfer Protocol

full-duplex A full-duplex, or sometimes double-duplex system, allows communication in both directions, and, unlike half-duplex, allows this to happen simultaneously. Land-line telephone networks are full-duplex, since they allow both callers to speak and be heard at the same time. A good analogy for a full-duplex system would be a two-lane road with one lane for each direction.

A.8 GGain The difference between the optical power from the input optical

interface of the optical amplifier and the optical power from the output optical interface of the jumper fiber, which expressed in dB.



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Gateway IP When an NE accesses a remote network management system or NE, a router can be used to enable the TCP/IP communication. In this case, the IP address of the router is the gateway IP. Only the gateway NE requires the IP address. The IP address itself cannot identify the uniqueness of an NE. The same IP addresses may exist in different TCP/IP networks. An NE may have multiple IP addresses, for example, one IP address of the network and one IP address of the Ethernet port.

Gateway Network Element

A network element that is used for communication between the NE application layer and the NM application layer.

GE Gigabit Ethernet

Generic Framing Procedure

A framing and encapsulation method which can be applied to any data type. It has been standardized by ITU-T SG15.

GFP See Generic Framing Procedure

GNE See Gateway Network Element

GPS Global Positioning System

GSM Global System for Mobile Communications

GTS Generic Traffic Shaping

GUI Graphic User Interface

A.9 Hhalf-duplex A transmitting mode in which a half-duplex system provides for

communication in both directions, but only one direction at a time (not simultaneously). Typically, once a party begins receiving a signal, it must wait for the transmitter to stop transmitting, before replying.

Hardware loopback

A connection mode in which a fiber jumper is used to connect the input optical interface to the output optical interface of a board to achieve signal loopback.

HDLC High level Data Link Control

HD-SDI See High Definition-Serial Digital Interface signal

HEC Header Error Control

Hierarchical Quality of Service

A type of QoS that controls the traffic of users and performs the scheduling according to the priority of user services. HQoS has an advanced traffic statistics function, and the administrator can monitor the usage of bandwidth of each service. Hence, the bandwidth can be allocated reasonably through traffic analysis.

High Definition-Serial Digital Interface signal

High definition video signal transported by serial digital interface.

History alarm The confirmed alarm that has been saved in the memory and other external memories.



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Historical performance data

The performance data that is stored in the history register or that is automatically reported and stored on the NMS.

HP Higher Order Path

HPT Higher Order Path Termination

HQoS See Hierarchical Quality of Service

A.10 IIC Integrated Circuit

IDU Indoor Unit

IEEE Institute of Electrical and Electronics Engineers

IETF Internet Engineering Task Force

IF Intermediate Frequency

IGMP See Internet Group Management Protocol

IGMP Snooping A multicast constraint mechanism running on a layer 2 device. This protocol manages and controls the multicast group by listening to and analyzing Internet Group Management Protocol (IGMP) packets between hosts and Layer 3 devices. In this manner, the spread of the multicast data on layer 2 network can be prevented efficiently.

IMA See Inverse Multiplexing over ATM

IMA frame A control unit in the IMA protocol. It is a logical frame defined as M consecutive cells, numbered 0 to M-l, transmitted on each of the N links in an IMA group.

Input jitter tolerance

The maximum amplitude of sinusoidal jitter at a given jitter frequency, which, when modulating the signal at an equipment input port, results in no more than two errored seconds cumulative, where these errored seconds are integrated over successive 30-second measurement intervals.

Intelligent power adjusting

A mechanism used to reduce the optical power of all the amplifiers in an adjacent regeneration section in the upstream to a safety level if the system detects the loss of optical signals on the link. If the fiber is broken, the device performance degrades, or the connector is not plugged well, the loss of optical signals may occur. With IPA, maintenance engineers will not be hurt by the laser sent out from the slice of broken fiber.

Interface board area

The area for the interface boards on the subrack.

Internal cable The cables and optical fibers which are used for interconnecting electrical interfaces and optical interfaces within the cabinet.

Internet Group Management Protocol

One of the TCP/IP protocols for managing the membership of Internet Protocol multicast groups. It is used by IP hosts and adjacent multicast routers to establish and maintain multicast group memberships.



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Inverse Multiplexing over ATM

A technique that involves inverse multiplexing and de-multiplexing of ATM cells in a cyclical fashion among links grouped to form a higher bandwidth logical link whose rate is approximately the sum of the link rates.

IP Internet Protocol

IP address A 32-bit (4-byte) binary digit that uniquely identifies a host (computer) connected to the Internet for communication with other hosts in the Internet by transferring packets. An IP address is expressed in dotted decimal notation, consisting of decimal values of its 4 bytes, separated by periods (,), for example, 127.0.0.1. The first three bytes of an IP address identify the network to which the host is connected, and the last byte identifies the host itself.

IP over DCC A technology that enables a DCC channel to carry TCP/IP protocol packets. The IP over DCC technology provides the TCP/IP protocol without using any extra overheads or service resources to ensure interconnection of management channels.

IPA See Intelligent power adjusting

IS-IS Intermedia System-Intermedia System

ISDN Integrated Services Digital Network

ISO International Standard Organization

ISP Internet Service Provider

IST Internal Spanning Tree

ITU-T International Telecommunication Union Telecommunication Standardization

A.11 JJitter Short waveform variations caused by vibration, voltage fluctuations,

and control system instability.

jitter tolerance Jitter tolerance is defined as the peak-to-peak amplitude of sinusoidal jitter applied on the input ATM-PON signal that causes a 1 dB optical power penalty at the optical equipment.

A.12 LLabel A short identifier that is of fixed length and local significance. It is

used to uniquely identify the FEC to which a packet belongs. It does not contain topology information. It is carried in the header of a packet and does not contain topology information.

LACP See Link Aggregation Control Protocol

LAG See link aggregation group

LAN Local Area Network

LAPS Link Access Procedure-SDH



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Laser A component that generates directional optical waves of narrow wavelengths. The laser light has better coherence than ordinary light. The fiber system takes the semi-conductor laser as the light source.

Layer A concept used to allow the transport network functionality to be described hierarchically as successive levels; each layer being solely concerned with the generation and transfer of its characteristic information.

layer 2 switch A data forwarding method. In a LAN, a network bridge or 802.3 Ethernet switch transmits and distributes packet data based on the MAC address. Since the MAC address is at the second layer of the OSI model, this data forwarding method is called Layer 2 switch.

LB See Loopback

LBM Loopback Message

LBR Loopback Reply

LC Lucent Connector

LCAS See Link Capacity Adjustment Scheme

LCD Liquid Crystal Display

LCT Local Craft Terminal

License A permission that the vendor provides for the user with a specific function, capacity, and duration of a product. A license can be a file or a serial number. Usually the license consists of encrypted codes. The operation authority granted varies with the level of the license.

Link In the topology view, a link is used to identify the physical or logical connection between two topological nodes. A link is used to connect signaling points (SPs) and signaling transfer points (STPs) and transmit signaling messages.

Link Aggregation Control Protocol

A method of bundling a group of physical interfaces together as a logical interface to increase bandwidth and reliability. For related protocols and standards, refer to IEEE 802.3ad.

link aggregation group

An aggregation that allows one or more links to be aggregated together to form a link aggregation group so that a MAC client can treat the link aggregation group as if it were a single link.

Link Capacity Adjustment Scheme

LCAS in the virtual concatenation source and sink adaptation functions provides a control mechanism to hitless increase or decrease the capacity of a link to meet the bandwidth needs of the application. It also provides a means of removing member links that have experienced failure. The LCAS assumes that in cases of capacity initiation, increases or decreases, the construction or destruction of the end-to-end path is the responsibility of the network and element management systems.

LLC Logical Link Control

LM See Loss Measurement



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Locked switching When the switching condition is satisfied, this function disables the service from being switched from the working channel to the protection channel. When the service has been switched, the function enables the service to be restored from the protection channel to the working channel.

LOF Loss of Frame

LOM Loss of Multiframe

Loopback A troubleshooting technique that returns a transmitted signal to its source so that the signal or message can be analyzed for errors. The loopback can be a inloop or outloop.

LOS Loss of Signal

Loss Measurement

Loss measurement, a method used to collect counter values applicable for ingress and egress service frames where the counters maintain a count of transmitted and received data frames between a pair of MEPs.

Lower Threshold A lower performance limit which when exceeded by a performance event counter will trigger a threshold-crossing event.

LP Lower Order Path

LPT Link State Pass Through

LSP Label Switched Path

LSR Label Switching Router

LT Link Trace

A.13 MMA See Maintenance Association

MAC Medium Access Control

Maintenance Association

TThat portion of a Service Instance, preferably all of it or as much as possible, the connectivity of which is maintained by CFM. It is also a full mesh of Maintenance Entities.

Maintenance Domain

The network or the part of the network for which connectivity is managed by connectivity fault management (CFM). The devices in a maintenance domain are managed by a single Internet service provider (ISP).

MAN See Metropolitan Area Network

Manual switch Switches normal traffic signal to the protection section, unless a failure condition exists on other sections (including the protection section) or an equal or higher priority switch command is in effect, by issuing a manual switch request for that normal traffic signal.

Mapping A procedure by which tributaries are adapted into virtual containers at the boundary of an SDH network.



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Marking-off template

A quadrate cardboard with four holes. It is used to mark the positions of the installation holes for the cabinet.

MBS Maximum Burst Size

MCF Message Communication Function

MCR Minimum Cell Rate

MD See Maintenance Domain

Mean launched power

The average power of a pseudo-random data sequence coupled into the fiber by the transmitter.

MEP Maintenance End Point

Metropolitan Area Network

A network that interconnects users with computer resources in a geographic area or region larger than that covered by even a large LAN but smaller than the area covered by an WAN. The term is applied to the interconnection of networks in a city into a single larger network (which may then also offer efficient connection to a wide area network). It is also used to mean the interconnection of several local area networks by bridging them with backbone lines. The latter usage is also sometimes referred to as a campus network.

MIB Management Information Base

MIP Maintenance Intermediate Point

MODEM MOdulator-DEModulator

MP Maintenance Point

MPID Maintenance Point Identification

MPLS See Multiprotocol Label Switching

MS Multiplex Section

MSA Multiplex Section Adaptation

MSOH See Multiplex Section Overhead

MSP See Multiplex Section Protection

MST Multiplex Section Termination

MSTI Multiple Spanning Tree Instance

MSTP See Multi-service transmission platform

MSTP See Multiple Spanning Tree Protocol

MTIE Maximum Time Interval Error

MTU Maximum Transmission Unit

Multiprotocol Label Switching

A technology that uses short tags of fixed length to encapsulate packets in different link layers, and provides connection-oriented switching for the network layer on the basis of IP routing and control protocols. It improves the cost performance and expandability of networks, and is beneficial to routing.



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Multi-service transmission platform

A platform based on the SDH platform, capable of accessing, processing and transmitting TDM services, ATM services, and Ethernet services, and providing unified management of these services.

Multicast A process of transmitting data packets from one source to many destinations. The destination address of the multicast packet uses Class D address, that is, the IP address ranges from 224.0.0.0 to 239.255.255.255. Each multicast address represents a multicast group rather than a host.

Multiple Spanning Tree Protocol

A protocol that can be used in a loop network. Using an algorithm, the MSTP blocks redundant paths so that the loop network can be trimmed as a tree network. In this case, the proliferation and endless cycling of packets is avoided in the loop network. The protocol that introduces the mapping between VLANs and multiple spanning trees. This solves the problem that data cannot be normally forwarded in a VLAN because in STP/RSTP, only one spanning tree corresponds to all the VLANs.

Multiplex Section Overhead

The overhead that comprises rows 5 to 9 of the SOH of the STM-N signal. See SOH definition.

Multiplex Section Protection

A function, which is performed to provide capability for switching a signal between and including two multiplex section termination (MST) functions, from a "working" to a "protection" channel.

Multiplexing A procedure by which multiple lower order path layer signals are adapted into a higher order path or the multiple higher order path layer signals are adapted into a multiplex section.

A.14 NNE See network element

NE Explorer The main operation interface, of the network management system, which is used to manage the telecommunication equipment. In the NE Explorer, the user can query, manage and maintain the NE, boards, and ports on a per-NE basis.

network element An NE contains both the hardware and the software running on it. One NE is at least equipped with one system control and communication(SCC) board which manages and monitors the entire network element. The NE software runs on the SCC board.

network node interface

The interface at a network node which is used to interconnect with another network node.

network segment A part of an Ethernet or other network, on which all message traffic is common to all nodes, that is, it is broadcast from one node on the segment and received by all others.

NLP Normal Link Pulse

NMS Network Management System

NNI See network node interface



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NPC Network Parameter Control

nrt-VBR Non Real-Time Variable Bit Rate

NRZ Non Return to Zero code

NSAP Network Service Access Point

NTP Network Time Protocol

A.15 OOA See Optical Amplifier

OADM See Optical Add/Drop Multiplexer

OAM Operations, Administration and Maintenance

OAM auto-discovery

In the case of OAM auto-discovery, two interconnected ports, enabled with the Ethernet in the First Mile OAM (EFM OAM) function, negotiate to determine whether the mutual EFM OAM configuration match with each other by sending and responding to the OAM protocol data unit (OAMPDU). If the mutual EFM OAM configuration match, the two ports enter the EFM OAM handshake phase. In the handshake phase, the two ports regularly send the OAMPDU to maintain the neighborhood relation.

OCP See Optical Channel Protection

ODF See Optical Distribution Frame

ODU Outdoor Unit

OFS Out-of-frame Second

OHA Overhead Access Function

OLT Optical Line Terminal

Online Help The capability of many programs and operating systems to display advice or instructions for using their features when so requested by the user.

ONU Optical Network Unit

OOF Out of Frame

Optical Add/Drop Multiplexer

A device that can be used to add the optical signals of various wavelengths to one channel and drop the optical signals of various wavelengths from one channel.

Optical Amplifier Devices or subsystems in which optical signals can be amplified by means of the stimulated emission taking place in a suitable active medium.

Optical attenuator

A passive device that increases the attenuation in a fiber link. It is used to ensure that the optical power of the signals received at the receive end is not extremely high. It is available in two types: fixed attenuator and variable attenuator.



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Optical Channel Protection

In an optical transmission link that contains multiple wavelengths, when a certain wavelength goes faulty, the services at the wavelength can be protected if the optical channel protection is configured.

Optical Connector

A component normally attached to an optical cable or a piece of apparatus to provide frequent optical interconnection/disconnection of optical fibers or cables.

Optical Distribution Frame

A frame which is used to transfer and spool fibers.

Optical Interface A component that connects several transmit or receive units.

Optical Time Domain Reflectometer

A device that sends a very short pulse of light down a fiber optic communication system and measures the time history of the pulse reflection to measure the fiber length, the light loss and locate the fiber fault.

orderwire A channel that provides voice communication between operation engineers or maintenance engineers of different stations.

OSI Open Systems Interconnection

OSN Optical Switch Node

OSPF Open Shortest Path First

OTDR See Optical Time Domain Reflectometer

OTU See Optical transponder unit

Optical transponder unit

A device or subsystem that converts the accessed client signals into the G.694.1/G.694.2-compliant WDM wavelength.

Output optical power

The ranger of optical energy level of output signals.

Overhead Extra bits in a digital stream used to carry information besides traffic signals. Orderwire, for example, would be considered overhead information.

A.16 PPaired slots Two slots of which the overheads can be passed through by using the

bus on the backplane.

pass-through The action of transmitting the same information that is being received for any given direction of transmission.

Path A performance resource object defined in the network management system. The left end of a path is a device node whose port needs to be specified and the right end of a path is a certain IP address which can be configured by the user. By defining a path in the network management system, a user can test the performance of a network path between a device port and an IP address. The tested performance may be the path delay, packet loss ratio or other aspects.

PBS Peak Burst Size



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PC Personal Computer

PCM Pulse Code Modulation

PCR Peak Cell Rate

PDH See Plesiochronous Digital Hierarchy

PDU See Power distribution unit

PE See provider edge

Performance register

The memory space for performance event counts, including 15-min current performance register, 24-hour current performance register, 15-min historical performance register, 24-hour historical performance register, UAT register and CSES register. The object of performance event monitoring is the board functional module, so every board functional module has a performance register. A performance register is used to count the performance events taking place within a period of operation time, so as to evaluate the quality of operation from the angle of statistics.

performance threshold

A limit for generating an alarm for a selected entity. When the measurement result reaches or exceeds the preset alarm threshold, the performance management system generates a performance alarm.

Permanent Virtual Connection

A connection between two ATM end hosts. The connection consists of PVPs between the ATM end hosts and their respective switches, and SVPs between the switches.

PGND Protection Ground

PGND cable A cable which connects the equipment and the protection grounding bar. Usually, one half of the cable is yellow, whereas the other half is green.

PIM-SM Protocol Independent Multicast-Sparse Mode

PIR Peak Information Rate

plesiochronous Qualifying two time-varying phenomena, time-scales, or signals in which corresponding significant instants occur at the same rate, any variations in rate being constrained within specified limits. Note: Corresponding significant instants are separated by time intervals having durations which may vary without limit.

Plesiochronous Digital Hierarchy

A multiplexing scheme of bit stuffing and byte interleaving. It multiplexes the minimum rate 64 kit/s into the 2 Mbit/s, 34 Mbit/s, 140 Mbit/s, and 565 Mbit/s rates.

PLL Phase-Locked Loop

Pointer An indicator whose value defines the frame offset of a virtual container with respect to the frame reference of the transport entity on which this pointer is supported.

POS Packet Over SDH

Power box A direct current power distribution box at the upper part of a cabinet, which supplies power for the subracks in the cabinet.



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Power distribution unit

A unit that performs AC or DC power distribution.

PPP Point-to-Point Protocol

PRBS See Pseudo Random Binary Sequence

PRC Primary Reference Clock

Primitive In the hierarchy of signaling system No.7, when the upper layer applies for services from the lower layer or the lower layer transmits services to the upper layer, the data is exchanged between the user and the service provider. The data transmitted between adjacent layers is called primitive.

Private Line A line, such as a subscriber cable and trunk cable, which are leased by the telecommunication carrier and are used to meet the special user requirements.

Protection path A specific path that is part of a protection group and is labeled protection.

Protection service A specific service that is part of a protection group and is labeled protection.

Protection subnet In the NMS, the protection subnet becomes a concept of network level other than multiplex section rings or path protection rings. The protection sub-network involves NEs and fiber cable connections.

Protection View The user interface, of the NMS, which is used to manage protection in the network.

provider edge A device that is located in the backbone network of the MPLS VPN structure. A PE is responsible for managing VPN users, establishing LSPs between PEs, and exchanging routing information between sites of the same VPN. A PE performs the mapping and forwarding of packets between the private network and the public channel. A PE can be a UPE, an SPE, or an NPE.

PS Packet Switched

PSD Power Spectral Density

Pseudo Random Binary Sequence

A sequence that is random in a sense that the value of an element is independent of the values of any of the other elements, similar to real random sequences.

Pseudo Wire An emulated connection between two PEs for transmitting frames. The PW is established and maintained by PEs through signaling protocols. The status information of a PW is maintained by the two end PEs of a PW.

Pseudo Sire Emulation edge-to-edge

An end-to-end Layer 2 transmission technology. It emulates the essential attributes of a telecommunication service such as ATM, FR or Ethernet in a packet switched network (PSN). PWE3 also emulates the essential attributes of low speed time division multiplexing (TDM) circuit and SONET/SDH. The simulation approximates to the real situation.

PVC See Permanent Virtual Connection



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PW See Pseudo Wire

PWE3 See Pseudo Sire Emulation edge-to-edge

A.17 QQinQ A layer 2 tunnel protocol based on IEEE 802.1Q encapsulation. It add

a public VLAN tag to a frame with a private VLAN tag to allow the frame with double VLAN tags to be transmitted over the service provider’s backbone network based on the public VLAN tag. This provides a layer 2 VPN tunnel for customers and enables transparent transmission of packets over private VLANs.

QoS See Quality of Service

Quality of Service A commonly-used performance indicator of a telecommunication system or channel. Depending on the specific system and service, it may relate to jitter, delay, packet loss ratio, bit error ratio, and signal-to-noise ratio. It functions to measure the quality of the transmission system and the effectiveness of the services, as well as the capability of a service provider to meet the demands of users.

A.18 RRapid Spanning Tree Protocol

An evolution of the Spanning Tree Protocol, providing for faster spanning tree convergence after a topology change. The RSTP protocol is backward compatible with the STP protocol.

RDI Remote Defect Indication

Receiver Sensitivity

The minimum acceptable value of average received power at point R to achieve a 1 x 10-12 BER (The FEC is open).

Reference clock A kind of stable and high-precision autonous clock providing frequencies for other clocks for reference.

REG A piece of equipment or device that regenerates electrical signals.

Regeneration The process of receiving and reconstructing a digital signal so that the amplitudes, waveforms and timing of its signal elements are constrained within specified limits.

Regenerator section overhead

The regenerator section overhead comprises rows 1 to 3 of the SOH of the STM-N signal.

Remote optical pumping amplifier

A remote optical amplifier subsystem designed for applications where power supply and monitoring systems are unavailable. The ROPA subsystem is a power compensation solution to the ultra-long distance long hop (LHP) transmission.

Resilient Packet Ring

A network topology being developed as a new standard for fiber optic rings.

RF Radio Frequency

RFA Request For Announcement



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RFI Request for Information

ring network A type of network topology in which each node connects to exactly two other nodes, forming a circular pathway for signals.

RNC Radio Network Controller

ROPA See Remote optical pumping amplifier

route The path that network traffic takes from its source to its destination. In a TCP/IP network, each IP packet is routed independently. Routes can change dynamically.

router A device on the network layer that selects routes in the network. The router selects the optimal route according to the destination address of the received packet through a network and forwards the packet to the next router. The last router is responsible for sending the packet to the destination host. Can be used to connect a LAN to a LAN, a WAN to a WAN, or a LAN to the Internet.

RP Rendezvous Point

RPR See Resilient Packet Ring

RS232 A asynchronous transfer mode that does not involve hand-shaking signal. It can communicate with RS232 and RS422 of other stations in point-to-point mode and the transmission is transparent. Its highest speed is 19.2kbit/s.

RS422 The specification that defines the electrical characteristics of balanced voltage digital interface circuits. The interface can change to RS232 via the hardware jumper and others are the same as RS232.

RSTP See Rapid Spanning Tree Protocol

RTN Radio Transmission Node

RX Receiver

A.19 SS1 byte A byte to transmit network synchronization status information. On an

SDH network, each NE traces hop by hop to the same clock reference source through a specific clock synchronization path, realizing synchronization on the entire network. If a clock reference source traced by an NE is missing, this NE will trace another clock reference source of a lower level. To implement protection switching of clocks in the whole network, the NE must learn about clock quality information of the clock reference source it traces. Therefore, ITU-T defines S1 byte to transmit network synchronization status information. It uses the lower four bits of the multiplex section overhead S1 byte to indicate 16 types of synchronization quality grades. Auto protection switching of clocks in a synchronous network can be implemented using S1 byte and a proper switching protocol.

SAN Storage Area Network

SC Square Connector



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SCR Sustainable Cell Rate

SD See space diversity

SD See Signal Degrade

SD See Standard definition

SDH See Synchronous Digital Hierarchy

SDP Serious Disturbance Period

SD-SDI See Standard definition-Serial Digital Interface signal

SEC SDH Equipment Clock

Section The portion of a SONET transmission facility, including terminating points, between (i) a terminal network element and a regenerator or (ii) two regenerators. A terminating point is the point after signal regeneration at which performance monitoring is (or may be) done.

Self-healing A function of establishing a replacement connection by network without the network management connection function. When a connection failure occurs, the replacement connection is found by the network elements and rerouted depending on network resources available at that time.

Serial port extended ECC

The ECC channel realized by means of serial port.

server A network device that provides services to network users by managing shared resources, often used in the context of a client-server architecture for a LAN.

Service protection

A measure that ensures that the services can be received at the receive end.

SES Severely Errored Second

SETS Synchronous Equipment Timing Source

settings Parameters of a system or operation that can be selected by the user.

SF See Signal Fail

Signal Fail A signal indicating that associated data has failed in the sense that a near-end defect condition (non-degrade defect) is active.

SFP See Small Form-Factor Pluggable

SHDSL Single-line High speed Digital Subscriber Line

Side Mode Suppression Ratio

The Side Mode Suppression Ratio (SMSR) is the ratio of the largest peak of the total source spectrum to the second largest peak.

signal cable Common signal cables cover the E1 cable, network cable, and other non-subscriber signal cable.

Signal Degrade SD is a signal indicating the associated data has degraded in the sense that a degraded defect (e.g., dDEG) condition is active.



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Signal Fail SF is a signal indicating the associated data has failed in the sense that a near-end defect condition (not being the degraded defect) is active.

Simple Network Management Protocol

A network management protocol of TCP/IP. It enables remote users to view and modify the management information of a network element. This protocol ensures the transmission of management information between any two points. The polling mechanism is adopted to provide basic function sets. According to SNMP, agents, which can be hardware as well as software, can monitor the activities of various devices on the network and report these activities to the network console workstation. Control information about each device is maintained by a management information block.

slide rail Angle-bars on which shelves and chassis may slide and be supported within a cabinet or shelf.

Small Form-Factor Pluggable

A specification for a new generation of optical modular transceivers.

SMSR See Side Mode Suppression Ratio

SNC SubNetwork Connection

SNCMP See Subnetwork connection multipath protection

SNCP See SubNetwork Connection Protection

SNCP node Set the SNC node on the protection sub-network to support sub-network connection protection that spans protection sub-networks. The SNCP node of the ring sub-network can support electric circuit dually feed and selectively receive a timeslot out of the ring, thus implementing sub-network connection protection. The SNCP node is generally set on the node on the line board with the path protection type of the dual fed and selectively received.

SNCTP See Subnetwork Connection Tunnel Protection

SNMP See Simple Network Management Protocol

SNR Signal Noise Ratio

space diversity A diversity scheme that enables two or more antennas separated by a specific distance to transmit/receive the same signal and selection is then performed between the two signals to ease the impact of fading. Currently, only receive SD is used.

Spanning Tree Protocol

STP is a protocol that is used in the LAN to remove the loop. STP applies to the redundant network to block some undesirable redundant paths through certain algorithms and prune a loop network into a loop-free tree network.

SPI Synchronous Physical Interface

SSM See Synchronization Status Message

SSU Synchronization Supply Unit

Standard definition

A video format with the resolution below 720p.



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Standard definition-Serial Digital Interface signal

Standard definition video signal transported by serial digital interface.

Statistical multiplexing

A multiplexing technique whereby information from multiple logical channels can be transmitted across a single physical channel. It dynamically allocates bandwidth only to active input channels, to make better use of available bandwidth and allow more devices to be connected than with other multiplexing techniques.

STM-4 SDH standard for transmission over optical fiber at 622.08 Mbit/s.

STP See Spanning Tree Protocol

Sub-network number

A number used to differentiate network sections in a sub-network conference. A sub-network ID consists of the first several digits (one or two) of a user phone number. An order wire phone number consists of the sub-network ID and the user number.

subnet A type of smaller networks that form a larger network according to a rule, for example, according to different districts. This facilitates the management of the large network.

subnet mask The technique used by the IP protocol to determine which network segment packets are destined for. The subnet mask is a binary pattern that is stored in the client machine, server or router matches with the IP address.

Subnetwork connection multipath protection

The only difference is that SNCP is of 1+1 protection and SNCMP is of N+1 protection. That is, several backup channels protect one active channel in SNCMP.

SubNetwork Connection Protection

A function, which allows a working subnetwork connection to be replaced by a protection subnetwork connection if the working subnetwork connection fails, or if its performance falls below a required level.

Subnetwork Connection Tunnel Protection

SNCTP provides a VC-4 level channel protection. When the working channel is faulty, the services of the entire VC-4 path can be switched over to the protection channel.

Support A part used to support and fix a cabinet on the antistatic floor. It is made of welded steel plates and is used to block up the cabinets to facilitate floor layout and cabling. Before the whole set of equipment is grounded, insulation plates must be installed under the supports, and insulating coverings must be added to the expansion bolts to achieve good insulation performance.

Suppression state An attribute set to determine whether an NE monitors the alarm. Under suppression status, NE will not monitor the corresponding alarm conditions and the alarm will not occur even when the alarm conditions are met.

SVC Switching Virtual Connection



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Switching priority

A priority of a board that is defined for protection switching. When several protected boards need to be switched, a switching priority should be set for each board. If the switching priorities of the boards are the same, services on the board that fails later cannot be switched. Services on the board with higher priority can preempt the switching resources of that with lower priority.

Switching restoration time

It refers to the period of time between the start of detecting and the moment when the line is switched back to the original status after protection switching occurs in the MSP sub-network.

Synchronization Status Message

A message that carries quality levels of timing signals on a synchronous timing link. Nodes on an SDH network and a synchronization network acquire upstream clock information through this message. Then the nodes can perform proper operations on their clocks, such as tracing, switching, or converting to holdoff, and forward the synchronization information to downstream nodes.

Synchronous Digital Hierarchy

A transmission scheme that follows ITU-T G.707, G.708, and G.709. It defines the transmission features of digital signals such as frame structure, multiplexing mode, transmission rate level, and interface code. SDH is an important part of ISDN and B-ISDN. It interleaves the bytes of low-speed signals to multiplex the signals to high-speed counterparts, and the line coding of scrambling is used only for signals. SDH is suitable for the fiber communication system with high speed and a large capacity since it uses synchronous multiplexing and flexible mapping structure.

Synchronous source

A clock providing timing services to connected network elements. This would include clocks conforming to Recommendations G.811, G.812 and G.813.

A.20 TTandem Connection Monitor

In the SDH transport hierarchy, the TCM is located between the AU/TU management layer and HP/LP layer. It uses the N1/N2 byte of POH overhead to monitor the quality of the transport channels on a transmission section (TCM section).

TCM See Tandem Connection Monitor

TCP/IP See Transmission Control Protocol/Internet Protocol

TDM Time Division Multiplexing

TIM Trace Identifier Mismatch

Timeslot Continuously repeating interval of time or a time period in which two devices are able to interconnect.

Time Synchronization

Also called the moment synchronization, time synchronization means that the synchronization of the absolute time, which requires that the starting time of the signals keeps consistent with the UTC time.

TM Terminal Multiplexer

TMN Telecommunications Management Network



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ToS See Type of Service

TPS See Tributary Protection Switch

Trail management function

A network level management function of the network management system. This function enables you to configure end-to-end services, view graphic interface and visual routes of a trail, query detailed information of a trail, filter, search and locate a trail quickly, manage and maintain trails in a centralized manner, manage alarms and performance data by trail, and print a trail report.

Transceiver A transmitter and receiver housed together in a single unit and having some circuits in common, often for portable or mobile use.

Transmission Control Protocol/Internet Protocol

Common name for the suite of protocols developed to support the construction of worldwide internetworks.

transparent transmission

A process during which the signaling protocol or data is not processed in the content but encapsulated in the format for the processing of the next phase.

Tray A component that can be installed in the cabinet for holding chassis or other devices.

Tributary loopback

A fault can be located for each service path by performing loopback to each path of the tributary board. There are three kinds of loopback modes: no loopback, outloop, and inloop.

Tributary Protection Switch

A function that uses a standby tributary processing board to protect N tributary processing boards.

Tributary unit An information structure which provides adaptation between the lower order path layer and the higher order path layer. It consists of an information payload (the lower order VC) and a TU pointer which indicates the offset of the payload frame start relative to the higher order VC frame start.

Tributary Unit Group

One or more Tributary Units, occupying fixed, defined positions in a higher order VC-n payload is termed a Tributary Unit Group (TUG). TUGs are defined in such a way that mixed capacity payloads made up of different size Tributary Units can be constructed to increase flexibility of the transport network.

TTL Time To Live

TU Tributary Unit

TUG See Tributary Unit Group

Tunnel A channel on the packet switching network that transmits service traffic between PEs. In VPN, a tunnel is an information transmission channel between two entities. The tunnel ensures secure and transparent transmission of VPN information. In most cases, a tunnel is an MPLS tunnel.



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Type of Service A field in an IP packet (IP datagram) used for quality of service (QoS). The TOS field has 8 bits in length, which is divided into five subfields.

A.21 UUART Universal Asynchronous Receiver/Transmitter

UAS Unavailable Second

UBR Unspecified Bit Rate

underfloor cabling

The cables connected cabinets and other devices are routed underfloor.

UNI See User-to-Network Interface

Unprotected Pertaining to the transmission of the services that are not protected. The services cannot be switched to the protection channel if the working channel is faulty or the service is interrupted, because protection mechanism is not configured.

Unprotected sub-network

A sub-network without any protection mechanism. The purpose of such configuration is to provide the basic data of trail protection for subsequent trail management.

Upload An operation to report some or all configuration data of an NE to the NMS. The configuration data then covers the configuration data stored at the NMS side.

UPM Uninterruptible Power Module

Upper threshold TThe critical value that can induce unexpected events if exceeded.

UPS Uninterruptible Power Supply

Upward cabling Cables or fibers connect the cabinet with other equipment from the top of the cabinet.

User Any entity external to the network which utilizes connections through the network for communication. A person or other entity authorized by a subscriber to use some or all of the services subscribed to by that subscriber.

User-to-Network Interface

The interface between user equipment and private or public network equipment (for example, ATM switches).

UTC Universal Time Coordinated

A.22 VVB Virtual Bridge

VBR Variable Bit Rate

VC Virtual Concatenation

VC See Virtual Container



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VCG Virtual Concatenation Group

VCI Virtual Channel Identifier

Virtual Container

The information structure used to support path layer connections in the SDH. It consists of information payload and path overhead (POH) information fields organized in a block frame structure which repeats every 125 or 500 μs.

Virtual local area network

A logical grouping of two or more nodes which are not necessarily on the same physical network segment but which share the same IP network number. This is often associated with switched Ethernet.

Virtual Private Network

A system configuration, where the subscriber is able to build a private network via connections to different network switches that may include private network capabilities.

VLAN See Virtual local area network

VP Virtual Path

VPI Virtual Path Identifier

VPN See Virtual Private Network

A.23 WWait to Restore The number of minutes to wait before services are switched back to

the working line.

WAN Wide Area Network

Wander The long-term variations of the significant instants of a digital signal from their ideal position in time (where long-term implies that these variations are of frequency less than 10 Hz).

washer A washer is a thin flat ring of metal or rubber which is placed over a bolt before the nut is screwed on.

Wavelength Division Multiplexing

A technology that utilizes the characteristics of broad bandwidth and low attenuation of single mode optical fiber, uses multiple wavelengths as carriers, and allows multiple channels to transmit simultaneously in a single fiber.

Wavelength protection group

Data for describing the wavelength protection structure. Its function is similar to that of the protection subnet for SDH NEs. The wavelength path protection can work only with the correct configuration of the wavelength protection group.

WDM See Wavelength Division Multiplexing

WFQ Weighted Fair Queuing

Winding pipe A tool for fiber routing, which acts as the corrugated pipe.

Working path A path allocated to transport the normal traffic.

WRED Weighted Random Early Detection

WTR See Wait to Restore



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