SDH Hardware Copy

8/12/2019 SDH Hardware Copy

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OptiX 2500+ Transmission SystemOptiX 2500+ Transmission System

SYSTEM OVERVIEW

OptiX 2500+


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ContentContent

Rack and Related Parts

Sub-rack

Auxiliary Parts


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RackRack1. 2000mm (H) 600mm (W) 600mm (D); 92kg;

2. 2200mm (H) 600mm (W) 600mm (D);101kg;

3. 2600mm (H) 600mm (W) 600mm (D); 112.3kg.

1. Only one sub rack

. .


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Power BoxPower Box

-48V(1st way) Alarm mute switchAcoustooptictest switch Indicator-48V(2nd way)

MUTE TEST

Main switch(1st way) ProtectiveGround Power switch ofthe upper subrackWorkingground Power switch of

the lower subrackPMU board

Main switch(2nd way)

-48V1 -48V2PGNDBGND

-48V1 -48V2 UPPERSUBRACK LOWERSUBRACK

RMU

ALM

RUN


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Power BoxPower Box

PDA : Power Distribution AdapterPMU : Power Monitor UnitOPU : Over-voltage protection UnitLVC : Low voltage control Unit

PD

P M U

Power box

Cabinet

A O

P U LVC


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Power BoxPower Box

-48V1

Main switch of thefirst power supply

-48V1

Main switch of thesecond power supply

OPU

BridgeRectifier

BridgeRectifier

Filter Copper Plate

Low VoltageProtection Switch

Power Switchfor upper /

lower sub rack

PDAUpper sub rackpower supply

Lower sub rackpower supply

To LowerSub rack To Upper

Sub rack

PMU

Sub rack communication Interfaceand various external interfaces

PGNDBGND


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PMUPMU1. Generates ringing current for order wire2. Monitor the voltage of the power

3. Monitor temperature in the Rack4. Monitors alarms5. Communicate with the SCC board.

1 2 3 4

1. To select the operation / detection mode of PM.

2. To select whether the PMU communicates withlower (up) or upper subrack.

3. Under normal power input (-48/-60V), it isswitched down.

4. Reserved.

Toggle switches


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FANFAN

Fan dust screen

Fan

Fan fuse

Fan cable hole

Fan power cord

Fan switch

Indicator

Handle


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Sub-rackSub-rack


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Rack and Sub-rackRack and Sub-rack

LTU9LTU10

LTU11LTU12

View without themother board

LTU1/FB2

LTU4LTU3LTU2Interface area of

the mother board

FB1/LPTR

EIPC

Suspension loop

Wire bindingsupport


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External InterfaceExternal Interface


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Board Insertion AreaBoard Insertion AreaBoard Insertion Areaat the Front Subrack

I II II II II II IX X S I

XCS:1+1 protection

SCC:SCC/SCE board

U UU UU UU UU UU UC C

C

C

1 72 83 94 105 116 12S S

U

P

Optical fiber/electrical cable leading area

FAN

protective slot

IU1~IU4,IU9~IU12:boards need

interface board

IU 1/P, IU2, IU11, IU12 24mm,

IU3 ~ IU6, IU7 ~ IU10 32 mm

Slot Width


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Access Capacity of IU SlotAccess Capacity of IU Slot

IU

slot

1 2 3 4 5 6 7 8 9 10 11 12

/PCapacity 4 4 4 16

share16 16 16 16 16

share4 4 4

XCSXCS

IUslot

1 2 3 4 5 6 7 8 9 10 11 12 /P

Capacity 2 2 2 2share

4 4 4 4 2share

2 2 2

XCL/XCEXCL/XCE

In PTCL XCS board is used


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Board Insertion AreaBoard Insertion AreaBoard Insertion Area at the Back Sub-rack

PhoneEtNt

LTU

L

T

L

T

L

T

L

T

L

T

L

T

L

T

F

/ /

B1

LTU:interface boards

Phone

CLKAuxiliarySerial Port

BNC

OAM48V

12

2

3489

10

Back of fan

EIPC

FLPDR

B

567

FB1/LPDR ,FB2:FB1, FB2, LPDR

EIPC:EIPC


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System OverviewSystem Overview

Cross-connect Unit

(High-order 96*96 VC-4)

(Low-order 2016*2016 VC-12)

IU

IU

IU

IU

IU

IU

IU

IU

IU IU

TimingUnit

Axiliaryinterface unit

SCC andOHP unit

Interface Unit Interface Unit

Management

interfaceAuxiliaryinterface

Externalsychronization interface


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PDH Access UnitPDH Access Unit

OptiX 2500+


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What PDH boards do

we have in 2500+?

PD1 : 32 E1

: PM1 : 32 E1/T1 PQM : 63 E1/T1

PL3: 3 E3/T3 PD4: 2 E4


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Principle Diagram and Signal Flow Alarms and Performance

Course Content

Indicators Relationship with Other Boards Functions, Features and Applications


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E1 PPI LPA LPT HPA

Signal flow

PPI: PDH Physical Interface LPA: Lower order path adaptation

LPT: Lower order path termination HPA: Higher order path adaptation


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decoder Mapping120120120120and 75receivin

Clock board

To crossconnection board

encoder

Micro-processor

Demapping

Control logic and mail box

120120120120

and 75 transmitting

From crossconnection board

MCU


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PDH Access Unit (PQ1)PDH Access Unit (PQ1)

Executes mapping from 63xE1 signal into VC-4 and de-mapping Vc-4 to E1.

Through NMOS, the path protection switching function can be set, and can be

achieved by double transmission and selected receiving of the tributary boards.

Provides E1tributary timing signal as reference clock for the timing source and report

the clock status through the communication system between the boards.

Provides tributary remote loop back test and local loop back test.Maintain, via mail the box, communication with the NMOS.

Report tributary Alarms and performance events

Receives configuration commands issued by the Network Management System.

Communicates with the SCC board via Mail box.


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PDH Access Unit (PL3)PDH Access Unit (PL3)

Executes mapping from 3xE3 signal into VC-4 and de-mapping Vc-4 to E3.

Encode / Decode 3xE3 signal and receive / transmit E3 signal.

Provides 75 Ohms unbalanced interface specified in ITU-T G.703 Recommendation.


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ApplicationApplication

Support both E1 and T1 signal

Provides 120o balanced E1 interface and

PM1/PQMPM1/PQM

.

PD1/PQ1PD1/PQ1

Support E1 signalProvides 75o unbalanced interface and

120o balanced interface.


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FunctionFunction

1Service

path

2M signal

1Service

path

2M signal

Path Protection

3

2 4Protectionpath

Normal

check out TU-AIS

3

2 4Protectionpath

Abnormal


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FunctionFunction

Maintenance FunctionMaintenance Function

Tributary software loopback Online pseudo random code

SDHPQ1

LUPQ1

LUSDH

loopback Test instrument


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Alarms and Performance eventsAlarms and Performance eventsMajor alarmMajor alarm

T- ALOS:no E1 signal receivedReasons:Fault on E1 interface board

TU-AIS:Reasons:1. Incorrect cross-connect configuration

2. Fiber broken

TU-LOP:Reasons:Incorrect service configuration


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ALARMALARM

LP-RDI:remote defect indicationReasons:Alarm such as TU-AIS and

PS:protection switchReasons:protection switch has

Major alarmMajor alarm

TU-LOP detected by theremote terminal

LP-SLM LP-TIM:

Reasons:V5 or J2 mismatch

taken palceLP-REI:remote error indicationReasons:Bit error detected by theremote terminal


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PerformancePerformance

Performance EventPerformance Event

LP-BBE BIP-2 check bit errorcoun ng

TUPJCHIGH TU pointer positive justification counting

TUPJCLOW TU pointer negative justification counting


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IndicatorIndicator

Green indicator:Operation status indicator

5 times per second :the board is not in working status.

once every second :the board is in working status.

once every 2 seconds:the communication with theSCC board is interrupted.


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IndicatorIndicator

Red indicator:

Alarm Indicator

3 times per second :

critical alarmtwice per second:major alarm

once per second :minor alarm

constant on:

board failed


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Relationship with other boards

With XCS baord:

receive/send VC4 signal

receive/send clock signalfrom/to XCS board

Communicate withSCC board via mailbox:

report its running information,receive control command


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PL3 We only discuss thedifferent point

1. Provide 75W unbalanced interface specified- . .

2. P-LOS:Loss of tributary input signal


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SDH Access UnitSDH Access Unit

OptiX 2500+


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SDH boards in different levels

S16

SL4, SD4

SQ1, SD1, SL1

SDE, SDE


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1. Principle diagram and signal flow

2. Functions, features and applications

Course Content

3. Alarms and performance4. Indicators

5. Relationship with other boards


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SPI RST

CONNECTOR

MST MSP MSA HPT

Signal Flow

SPI: SDH physical interface RST: Regenerator section termination

MST: Multiplex section termination MSP: Multiplex section protection MSA: Multiplex section adaptation HPT: Higher order path termination


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O/ESTM-N input

STM-N output

Datatiming

LOSFramesynchrandscrambl

LOFOOF

Sectionoverheaandpathoverhea

Tributarpayloadpocessin

To crossconnection

From cross

Businterfac

LOS

Data

timing

SD1/SQ1/SD4SD1/SQ1/SD4

E/O code

Control

DataAddress

Micro-processo

Controllogic

Mailbo

processin

connection

ConnectMCU

Comm.between Comm. with other

Address & data


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Supports multiple types of networking

Various optical modules for

ApplicationsApplications

different distances

J1 Huawei SBSC2 according to the service


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Emergent AlarmEmergent Alarm

Alarms and Performance events

R-LOS:Loss of signal -Reasons:1. Light received too dim2. receiver failed

Loss of frameReasons:1. Clock of upstreamstation failed2. Too much bit error


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MS-AIS:Reasons:

Major AlarmMajor Alarm

AU-AIS:Reasons:

Service in VC4 levelis broken.

AU-LOP:Reasons:1. Hardware failed2. Wrong serviceconfiguration


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HP-TIM, HP-SLM:Reasons:J1 mismatch

B1, B2, B3-EXC:bit error excessReasons:

Minor AlarmMinor Alarm

HP-LOM:loss of multiframeReasons:1. Hardware failed2. Wrong service configuration

.2. hardware error


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MS-RDI:remote end defect indicateReasons:

-A

Minor AlarmMinor Alarm

HP-RDI:remote end defect indicateReasons:

MS-REI:remote end defect indicate

Reasons:remote end detect B2 error

HP-REI:remote end defect indicateReasons:remote end detect B3 error


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Same with other boards

Description of the indicatorsDescription of the indicators

Relationshi with other boardRelationshi with other board

with SCC board

DCC and E1~E2report its running information,receive control command

with XCS board

VC4 service signal

To next page


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with line board in dual slot

pass through D1~D3, E1~E2(only when SCC is not in the slot)pass through K1, K2

which slots are dual slots?

1~2, 3~10,4~9,5~6,7~8,11~12SQ1,SQE:1st~3rd,2nd~4th

or 1st~2nd,3rd~4thSD1,SD4:1st~2nd


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LOSFramesynchr

andscramblin

LOF

SOHand

POHLOS

O/E

STM-16 input

To cross-connect board

Bus

LOS

Datatiming

1: 32

demul-

tiplex

Datatiming Datatiming

S16 something different with other line boardS16 something different with other line board


code OOF

Control busData bus

Address bus

Micro-processor

Contrologicl

Mailbox

processing

Connect with MCU

E/O

STM-16 output

From cross-connect board

interface

32: 1multiplex


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Performance

Descriptionof

S16 can monitor more performance eventand Alarm

S16 can monitor more performance eventand Alarm


TF:Transmitter failed

TEMMN Laser temperature

OPM Output opticalpower

IPM Input optical power

LSBCM Laser bias currentmonitoring

Reasons:Transmitte optical poweris two low


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S-1.1 -11 -37 0 30

L-1.1 -4 -37 10 50STM-1

L-1.2 -4 -37 20 90

S-4.1 -13 -31 0 30

L-4.1 0 -31 20 50

- -STM-4

.

Ve-4.2 0 -38.5 35 120

S-16.1 -2 -21 0 30

L-6.1 0 -30 20 40

L-6.2 0 -31 35 80

V-6.2 12.5 -31 120 W ith opticalamplifier(poweramplifier)

STM-16

U-6.2 14 -38 160 with opticalamplifier

(boosteram plifier +

preamplifier)


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XCS BoardXCS Board

OptiX 2500+


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XCSXCS

Principle diagram and signal flow

Functions, features and applications

Alarms and performance

Indicators Relationship with other boards

XCS board will be discussed in two parts Cross-connect unit and clock unit


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XCS BoardXCS Board

Two cross-connect board withdifferent cross-connect unit.

STM-1 signalconnected

space divisioncross T-S-T cross

XCS 96 128X128 2016X2016XCL\XCE 32 48X48 1008X1008


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Cross-connect UnitCross-connect UnitPrinciple of cross-connect unitPrinciple of cross-connect unit

96 96VC4Cross-connect

Matrix

Input 96

VC4

Output 96

VC4Input 32VC4

Output 32 VC4

ControlCircuit

ClockGenerationg

Circuit

2016 2016VC12Cross-connectMatrix

Communicatingwith SCC andother boards


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Cross-connect UnitCross-connect Unit

Emergent alarmEmergent alarm


TEMP-OVERReasons:

PSReasons:

Minor alarmMinor alarm

pera on empera ureover limit

Major alarmMajor alarmMS-SWReasons:Switching of primaryand secondary board

w c ng o mu p ex sec on


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Cross-connect UnitCross-connect Unit

Relationship with other boardsRelationship with other boards

With SCCget control commandsend running information

With access boardsget/send VC4 signalget SNCP information

l kl k


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Clock UnitClock UnitPrinciple of cross-connect unitPrinciple of cross-connect unit

SETS SETPI Synchronization

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E1SETS

Cross-connect unit

Controlcircuit

MCU

IUreceiving

transmitting

c onn e c t or

1111

11SETS: Synchronous Equipment Timing Source

SETPI: Synchronous Equipment Timing physical interface

Cl k U iCl k U i


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Clock UnitClock Unit

In maser/slave mode,we have master NEuses external clock or

Synchronization mode(of system)

A

BITS

NEs use interface clock.

B

C

arrow means the sending directionof clock signal

Cl k U iCl k U i


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Working mode of clock unit

Normalclock signal is okHolding

A

BITS

frequency informationstored holding 24hFree oscillation

internal clock

B

C

arrow means the sending directionof clock signal


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Cl k U itCl k U it


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Major alarmMajor alarm


EXTSYNLOSReasons:

LTIReasons:

Emergent alarmEmergent alarm

Loss of externalsynchronization source

oss o a sync ron za onsources

S1-SYN-CHANGEReasons:Synchronization sourceswitching under S1 byte mode



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SYNC-LOSReasons:Loss of synchronization


SYN-BADReasons:Deterioration ofsynchronization source


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SCC BoardSCC Board

OptiX 2500+

SCC BoardSCC Board


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SCC BoardSCC Board

mailbox CPU

to boards

NM interfaceF&f interface

PrinciplePrinciple

OHP DCC

to boards

OAM interfaceAlarm interface

So what can SCC do for us?

SCC BoardSCC Board


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SCC BoardSCC Board

Functions and featuresFunctions and features

SEMF

Sn

SEMF:

Manage local equipment

MCF:

1. Communicate with

MCF

F interface

Q interface

D1-D3D4-D12

other NEs by D1-D32. Communicate with

NM through OAM

interface

SEMF: Synchronous Equipment Management Function

MCF: Message communication function

SCC BoardSCC Board


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SCC BoardSCC Board

Software FunctionSoftware Function

BIOS Boot the system, load and upgrade host software Self-check the SCC hardware

Host

Software

DCC communication

Accomplish real time supervision,maintenance and managementConsist of AM and CM

SCC BoardSCC Board


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SCC BoardSCC Board

ApplicationsApplications

ID--- the only physical identification of NE

ONOFF

D7 D6 D5 D4 D3 D2 D1 D0

ID=9, IP=129.9.0.9

SCC BoardSCC Board


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SCC BoardSCC Board

A B

L< 50mCOM1 COM1Extend

Connection

SCC BoardSCC Board


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SCC BoardSCC Board

WAN Modem Connection(two ways)

WAN Modem Connection(two ways)

NE B

NE A

NE D NE B

NE A

NE D

X.25interface

Modem

Modem

Serialinterface

NE C

PSTNModem

Modem

NE C

PSTN

SCC BoardSCC Board


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SCC BoardSCC Board


MSP-INFO-LOSSReasons:

APS-INDIReasons:

Emergent alarmEmergent alarm Major alarmMajor alarm

Multiplex section nodelost parameter

switching

APS-FAILReasons:Indicating failedprotection switching

SCC BoardSCC Board


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MAIL-ERRReasons:Mailbox communication

WRG-BD-TYPE

Reasons:Wrong board type


error

FAN-FAILReasons:

Fan failure

SCC BoardSCC Board


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What information will be reported to SCCby a SDH board?


Why SCC board need E1 timing clock signal?

SCC BoardSCC Board


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Principle of OHP unitPrinciple of OHP unit

CPUInterface adaptation

Asynchr. RS-232interface device

Four Parts Monitor Overhead

OHPClock processing Clock unit

Encoder/decoder User circuit

64kbit/s unidirectional 64kbit/s unidirectional

(1,2,3)

data interface device

Phone

Optical board

data encoding/decoding

Telephone Data

SCC BoardSCC Board


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Functions and featuresFunctions and features

1. Telephone Telephone conferencefunction

A B

u -networ te ep oneconference function Sub-network outgoingconnection function

L< 50mVOICE

SC

VOICE

SC

SCC BoardSCC Board


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2. Data interface

Unidirectional 64kbit/s transparent data interface

Transparent broadcast data interface.

What will OHP unit exchange with line board?


SCC BoardSCC Board


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SCC board has one more indicator ETN (yellow)-- indicator for communication status

Indicator Indicator

on--connection between NE and NM is okflash--data transmitted between NE and NM

when there's a call dialing in, the alarm indicator willquick flashes.


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AUXILIARY UNITAUXILIARY UNIT

OptiX 2500+

Optical Amplifier BoardOptical Amplifier Board


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Two Optical Amplifier Board we have in 2500+

BA2 and BPA

And two different EDFA modul

PA 23dB (constant gain)

EDFA: Erbium doped Fiber Amplifier (optical amplifier)



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PrinciplePrinciple

DFAInput Output

CPU



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Features FunctionFeatures FunctionBA2 simultaneously implements the transparentamplified transmission of two ways of optical signals.

SL64 ABA2

BPA simultaneously implements the receiving andamplified transmission of one way of optical signal.

ABPA

SL64......



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Alarms and PerformanceAlarms and Performance

IP-FAIL Input powerfailed Emergent

NOBDPARA

No boardparameter is

setEmergent

PerformanceEvent

Description ofperformance

IP-VALUE Input powervalue

OP-VALUE Output power

IP-OVER nput powerover limit Major

IP-LOW Input powerlow MinorWC-SETUP

Set workingcurrent of laser

WC-VALUE Actual workingcurrent of laser

CC-VALUE Cooling currentof laser

BC-VALUE Back current oflaser

TEMP-VALUEAmbient

temperaturevalue

Electrical Interface Protection BoardElectrical Interface Protection Board


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Principle of Electrical Interface ProtectionPrinciple of Electrical Interface Protection

Interface

Board

Access

Board

Service to physical interface (normal) Service to external physical interface (protection)Selection unit Selection unit

Working WorkingWorking WorkingWorking WorkingWorking Workingboard 1 board 1board 2 board 2board 3 board 3board N board Nboard board

Protection Protection


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Controller

Serial InterfaceDriver

All boards

Boards of thereal board

interface

EIPC BoardEIPC Board

Mailbox PowerSCC

EIPC

Running indicatorflashing twice every second --tributary switching

Indicator Indicator



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E75S/E12S (63 XE1 75o/120o interface board for switch )E75S used with PD1/PQ1(75o)

E12S used with PQ1/PD1/PM1/PQM(120o/100o)

Relay

PQ1(W)

PQ1(P) terminal atConnection

Coil

I

user side

Indicators:When the red indicator is on,the board is in switching status.



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LPSW Board (Line Protection Switching Board)used with SQE and cannot be inserted in LTU8

CMI encoderDriver Transformer

LPSW board

CMI encoder

Transmit

SQE

W

P

CMI decoderBalancer Transformer

CMI decoder

Receive

W

P

Indicators:When the red indicator is on,the board is in switching status.



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Protection Relationship

PD1 can protect PD1PQ1 can protect PD1/PQ1PM1 n r PD1/PM1

PQM can protect PD1/PM1/PQ1/PQMPL3 can protect PL3

SQE can protect SDE/SQE



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LPDR Board(Line Protection Drive Board)LPDR Board(Line Protection Drive Board)

Drive

Drive

LPSWSQE(P)LPDR Board (LineProtection DriveBoard) transmits

LPDR

STM-1 signal fromSQE board at IUPslot to every LPSWboard.

Indicators:When the green indicator is on,the power supply is normal



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C34S (3XE3/T3 75o Interface Board for Switch)Used with PL3 board and

can be inserted in LTU1~LTU8 slots.

FB1/FB2Connect all E1 wires at IUP slot to the E1 protectionbus over the mother boardUsed with protection group of PQ1, PD1, PM1, PQM orPL3 be inserted in (LTU1/FB2)/(FB1/LPDR) slots.

THE ENDTHE END


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