OPCOM3103 User Manual 200907

8/10/2019 OPCOM3103 User Manual 200907

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www.raisecom.com

OPCOM3103 (REV.A) User Manual


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Legal Notices

Raisecom Technology Co., Ltd makes no warranty of any kind with regard to this manual,including, but not limited to, the implied warranties of merchantability and fitness for a particular

purpose. Raisecom Technology Co., Ltd shall not be held liable for errors contained herein or direct,indirect, special, incidental or consequential damages in connection with the furnishing, performance,or use of this material.

Warranty.

A copy of the specific warranty terms applicable to your Raisecom product and replacement partscan be obtained from Service Office.

Restricted Rights Legend.

All rights are reserved. No part of this document may be photocopied, reproduced, or translated to

another language without the prior written consent of Raisecom Technology Co., Ltd . Theinformation contained in this document is subject to change without notice.

Copyright Notices.

Copyright 2009 Raisecom . All rights reserved.

No part of this publication may be excerpted, reproduced, translated or utilized in any form or by anymeans, electronic or mechanical, including photocopying and microfilm, without permission in

Writing from Raisecom Technology Co., Ltd .

Trademark Notices

is the trademark of Raisecom Technology Co., Ltd .

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Microsoft is a U.S. registered trademark of Microsoft Corporation.

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Windows 2000 is a U.S. registered trademark of Microsoft Corporation.

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Windows and MS Windows are U.S. registered trademarks of

Microsoft Corporation.


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Contact Information

Technical Assistance Center

The Raisecom TAC is available to all customers who need technical assistance with a Raisecom product, technology, or, solution. You can communicate with us through the following methods:

Address : Building 2, No. 28 of the Shangdi 6th Street, Haidian District, Beijing 100085

Tel : +86-10-82883305

Fax : +86-10-82883056

World Wide Web

You can access the most current Raisecom product information on the World Wide Web at thefollowing URL:

http://www.raisecom.com

Feedback

Comments and questions about how the OPCOM3103 device works are welcomed. Please reviewthe FAQ in the related manual, and if your question is not covered, send email by using the followingweb page:

http://www.raisecom.com/en/xcontactus/contactus.htm .

If you have comments on the OPCOM3103 specification, instead of the web page above, please sendcomments to:

[email protected]

We hope to hear from you!


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CONTENTSChapter 1 Overv iew of Device Syst em ------------------------------------------------------------ 1

1.1 Main features ---------------------------------------------------------------------------------------------------------------1 1.2 Explanation of device number -----------------------------------------------------------------------------------------2 1.3 Dimension-------------------------------------------------------------------------------------------------------------------2

Chapter 2 Technical Parameters -------------------------------------------------------------------- 3 2.1 Basic configuration--------------------------------------------------------------------------------------------------------3 2.2 STM-1 optical interface parameters ----------------------------------------------------------------------------------3 2.3 E1 interface parameters -------------------------------------------------------------------------------------------------3 2.4 Ethernet interface parameters -----------------------------------------------------------------------------------------3 2.5 CONSOLE interface parameters --------------------------------------------------------------------------------------3 2.6 SNMP network management interface parameters --------------------------------------------------------------4 2.7 Clock parameters----------------------------------------------------------------------------------------------------------4 2.8 External clock 2Mbit/2MHz interface specification----------------------------------------------------------------4

2.9 Power supply parameters -----------------------------------------------------------------------------------------------4 2.10 Work environment---------------------------------------------------------------------------------------------------------4

Chapter 3 Struc tur e and Indicator ------------------------------------------------------------------ 5 3.1 Front panel ------------------------------------------------------------------------------------------------------------------5 3.2 Rear panel view------------------------------------------------------------------------------------------------------------5 3.3 Interfaces on the front panel--------------------------------------------------------------------------------------------5 3.4 Indicator explanation -----------------------------------------------------------------------------------------------------6

Chapter 4 Funct ion and Appli cation --------------------------------------------------------------- 7 4.1 Network element type ----------------------------------------------------------------------------------------------------7 4.2 Network topology ----------------------------------------------------------------------------------------------------------8 4.3 Clock--------------------------------------------------------------------------------------------------------------------------9 4.4 Protection switch ----------------------------------------------------------------------------------------------------------9

Chapter 5 Installation and Preparation-----------------------------------------------------------12 5.1 Cautions -------------------------------------------------------------------------------------------------------------------12 5.2 Installation-----------------------------------------------------------------------------------------------------------------12

5.2.1 Cable preparation --------------------------------------------------------------------------------------------------------------------- 12 5.2.2 Connect to optical interface -------------------------------------------------------------------------------------------------------- 12 5.2.3 Connect E1 interface ----------------------------------------------------------------------------------------------------------------- 12 5.2.4 Connect Ethernet electrical interface -------------------------------------------------------------------------------------------- 13 5.2.5 Connect SNMP port ------------------------------------------------------------------------------------------------------------------ 13 5.2.6 Connect CONSOLE port ------------------------------------------------------------------------------------------------------------ 13 5.2.7 Power on -------------------------------------------------------------------------------------------------------------------------------- 13 5.2.8 Service configuration----------------------------------------------------------------------------------------------------------------- 14

5.3 Topology connections --------------------------------------------------------------------------------------------------14 5.3.1 Point-to-point topology--------------------------------------------------------------------------------------------------------------- 14 5.3.2 Chain topology without protection ------------------------------------------------------------------------------------------------ 14 5.3.3 Chain topology with protection----------------------------------------------------------------------------------------------------- 14 5.3.4 2-fiber ring topology ------------------------------------------------------------------------------------------------------------------ 15

Chapter 6 FAQ--------------------------------------------------------------------------------------------16 Appendix A Acronyms ------------------------------------------------------------------------------------17 Appendix B CONSOLE cable making ----------------------------------------------------------------18 Appendix C E1 cable making ---------------------------------------------------------------------------19 Appendix D External clock synchronous interface cable making--------------------------20


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General Safety Instructions

The following instructions serve as a general guide for the safe installation and operation of telecommunications

products. Additional instructions, if applicable, are included inside the manual.

Safety Symbols

This symbol may appear on the equipment or in the text. It indicates potentialsafety hazards regarding product operation or maintenance to operator or service

personnel.

Danger of electric shock! Avoid any contact with the marked surface while the product is energized or connected to outdoor telecommunication lines.

Protective earth: the marked lug or terminal should be connected to the building protective earth bus.

Some products may be equipped with a laser diode. In such cases, a label withthe laser class and other warnings as applicable will be attached near the opticaltransmitter. The laser warning symbol may be also attached.Please observe the following precautions: Before turning on the chassis with optic module, make sure that the fiber opticcable is intact and is connected to the transmitter. Do not attempt to adjust the laser drive current.

Do not use broken or unterminated fiber-optic cables/connectors or look straight at thelaser beam.

The use of optical devices with the equipment will increase eye hazard. Use of controls, adjustments or performing procedures other than those specified herein, mayresult in hazardous radiation exposure.ATTENTION: The laser beam may be invisible!

Always observe standard safety precautions during installation, operation and maintenance of this product. Only qualified and authorized service personnel should carry out adjustment, maintenanceor repairs to this product. No installation, adjustment, maintenance or repairs should be performed byeither the operator or the user.

All extension slots are not hot-swappable

Before operating modules in the electricity conditions, please be noticed that optical modules shall be connected with optical fiber wires or shield with optical module cover for fear that laser lightharms to operators eyes.

Handling Energized ProductsGeneral Safety Practices

Do not touch or tamper with the power supply when the power cord is connected. Line voltages may


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be present inside certain products even when the power switch (if installed) is in the OFF position ora fuse is blown. For DC-powered products, although the voltages levels are usually not hazardous,energy hazards may still exist.Before working on equipment connected to power lines or telecommunication lines, remove jewelryor any other metallic object that may come into contact with energized parts.Unless otherwise specified, all products are intended to be grounded during normal use. Groundingis provided by connecting the mains plug to a wall socket with a protective earth terminal. If an earth

lug is provided on the product, it should be connected to the protective earth at all times, by a wirewith a diameter of 18 AWG or wider. Rack-mounted equipment should be mounted only in earthedracks and cabinets.Always make the ground connection first and disconnect it last. Do not connect telecommunicationcables to ungrounded equipment. Make sure that all other cables are disconnected beforedisconnecting the ground.

Connection of AC MainsMake sure that the electrical installation complies with local codes.Always connect the AC plug to a wall socket with a protective ground.Always connect the power cord first to the equipment and then to the wall socket. If a power switchis provided in the equipment, set it to the OFF position. If the power cord cannot be readilydisconnected in case of emergency, make sure that a readily accessible circuit breaker or emergency

switch is installed in the building installation.Connection of DC MainsUnless otherwise specified in the manual, the DC input to the equipment is floating in reference tothe ground. Any single pole can be externally grounded.Due to the high current capability of DC mains systems, care should be taken when connecting theDC supply to avoid short-circuits and fire hazards.DC units should be installed in a restricted access area, i.e. an area where access is authorized only toqualified service and maintenance personnel.Make sure that the DC supply is electrically isolated from any AC source and that the installationcomplies with the local codes.Before connecting the DC supply wires, ensure that power is removed from the DC circuit. Locatethe circuit breaker of the panel board that services the equipment and switch it to the OFF position.When connecting the DC supply wires, first connect the ground wire to the corresponding terminal,then the positive pole and last the negative pole. Switch the circuit breaker back to the ON position.A readily accessible disconnect device that is suitably rated and approved should be incorporated inthe building installation.

Preventing Electrostatic Discharge Damage

Modules which can be plugged into chassis are sensitive to damage from static electricity.Conversely, static voltages as high as 35,000V can be generated just by handling plastic or foam

packing material, or by sliding assemblies across plastic and carpets. Not exercising the properelectrostatic discharge (ESD) precautions can result in intermittent or complete component failures.To minimize the potential for ESD damage, observe the following guidelines:

Always use an ESD-preventive antistatic wrist strap or ankle strap and ensure that it makes goodskin contact. When removing or installing a component, make sure the equipment end of your antistatic strapleash is connected to the ESD connection sockets on the front of the chassis or to a bare metalsurface on the chassis. Avoid contact between the component and your clothing. The wrist strap only

protects the component from ESD voltages on the body; ESD voltages on your clothing can stillcause component damage. Always place a card component-side-up on an antistatic surface, in an antistatic card rack, or in astatic shielding bag. If you are returning the item to the factory, immediately place it in a staticshielding bag. Handle Modules by the metal card carrier edges only; Avoid touching the board or any connector

pins.


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www.raisecom.com User Manual

1

Chapter 1 Overview of Device System

OPCOM3103-155-BL (OPCOM3103) is compact SDH Multi-Service access device develped byRaisecom with 1U height. The device contains a sub-card besides a motherboard. Sub-card ismatched by user and the contents of the sub-card will be discribed in sub-card manual. Presented

below refers to the functions and features of the montherboard.

OPCOM3103 can provide STM-1, E1 and Ethernet, etc. services, it is mainly applied to serviceaccess and transmission of access layer in communication networks; it also can make upcommunication networks together with access devices, GSM mobile cellular base station, switchesand routers.

OPCOM3103 is available for flexible topology: point-to-point, chain, ring and supports 1+1 LP (loworder path) protection to guarantee high reliable transmission.

You can manage OPCOM3103 by in-band or out-of-band network management channel; Raisecomnetwork management platforms NVIEW NNM are also available for figure information ofmonitoring, alarms, management and maintenance.

1.1 Main features

The device consists of main card and sub card, sub-card supports hot-swapping and can beselected.

Main board provides 32 balanced interface E1, 8 10/100M Ethernet electrical interfaces, ofwhich the first two Ethernet electrical interfaces can be customized as 100M Ethernet opticalinterface mode.

Sub-card types are 2 STM-1 sub-card, 2 DS3/E3 sub-card, 4 10/100M Ethernet sub-card withswitching function , 2 convergence GE sub-card and so on. The specific contents of sub-cardis described in the sub-card manual and we shall not repeat in this article.

The maximum capacity of device is 6 6VC4 (include sub-card), it can provide VC3/VC12hybird cross.

Optical interface of device adopts SFP module and supports the module with digitaldiagnostic function, it facilitates the user to select and maintain.

Ethernet service supports GFP and LAPS encapsulation, supports VC12/VC3 granularity, italso supports VCAT/LCAS function, 8 Ethernet services share 63 VC12 or 3 VC3.

The device clock supports clock holding, locking, and free running modes, compliant toG.813 criterion;

Device timing source supports 2 STM-1 line clock, the first 4 E1 line clock, 2 STM-1sub-card line clock, 1 2Mbit external clock, 1 2MHz external clock and the local crystaloscillator, at the same time supports 1 2Mbit and 1 2MHz external clock output.

Clock timing source selection supports SSM protocol. Device supports automatic laser shutdown (ALS) function and remote device power-down

alarm (LPR) detection function. E1 re-timing function. Re-timing source can be selected as: system 2M clock, the first 4E1

line clock, 2Mbit or 2MHz external clock and so on. Device supports in-band network management and out-of-band network management.

Inband network management channels occupies the last 2E1 services. Out-of-band networkmanagement channels need to use the DCC overhead bytes of regerneration segment ormultiplexing segment.

In-band network management rate of device can be configured as


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192Kbps/576Kbps/768Kbps, out-of-band management rate can be configured asD1-D3/D4-D12/D1-D12.

Providing SNMP interface and CONSOLE interface, in support of software onlin upgrade at both local end and remote end, very convenient for maintenance.

Network topology type: point-to-point, chain and ring; provide 1+1 LP protection, and theswitch time is less than 50ms.

Optical interface and E1 interface provides the local loopback and remote loopback functionto facilitate device mainenance. Provide a complete alarm and performance monitoring. Device provides redundant power supplies, power supports AC 220V, DC -48V and AC-DC

hybrid. Adopt 19-inch chassis, interface is compact and easy installation. Power consumption:


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3

Chapter 2 Technical Parameters

2.1 Basic configuration

2 STM-1 optical interfaces, 32 balanced E1 interfaces, 8 Ethernet electrical interfaces, 2Ethenet optical interfaces;

A sub-card extension slot; Power supply module:2 AC 220V or 2 DC 48V or 1 AC 220V and 1 DC 48V; External clock interface: 2Mbit/2MHz input clock balanced interface, 2Mbit/2MHz output

clock balanced interface; Management interface: CONSOLE port, SNMP network port.

2.2 STM-1 optical interface parameters

Rate: 155.52Mbps Line coding: NRZ Opitical interface: SFP Multiplexing structure: in compliant with ITU-T G.707 recommendation Clock characteristics: in compliant with ITU-T G.813 recommendation Physical electrical characteristics: in compliant with ITU-T G.957 recommendation Jitter characteristics: in compliant with ITU-T G.783, G.825 recommendation

2.3 E1 interface parameters Interface type: RJ45 Rate: 2048Kb/s50ppm Interface coding: HDB3 Impedance: 120 (balance) Physical electric features: in compliant with ITU-T G.703 recommendation Jitter: in compliant with ITU-TG.823 recommendation Input jitter tolerance: in compliant with ITU-T G. 823 recommendation Output jitter: in compliant with ITU-T G. 783 recommendation

2.4 Ethernet interface parameters Rate: 10/100M auto-negotiation Interface type: RJ-45 for electrical interface; SFP for opticcal interface Comply to IEEE802.3 standard Auto-MDI/MDIX In support of flow control In support of Jumbo frame (9600 bytes)

2.5 CONSOLE interface parameters

Interface type: RJ-45 In compliant with RS232 criterion Rate: 9600bps


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2.6 SNMP network management interface parameters

Interface type: RJ-45 In compliant with IEEE802.3 standard

10/100M auto-negotiation Auto-MDI/MDIX

2.7 Clock parameters

Clock mode: Locking, holding and free running modes Frequency precision: free running: 4.610 -6

Holding: 0.3710 -6(24 hours)

Trace range and loss of lock range: 4.610 -6

2.8 External clock 2Mbit/2MHz interface specification

Including one output interface and one input interface SYN-T: external clock output interface, supporting 2Mbit and 2MHz output synchronously SYN-R: external clock input interface, supporting 2Mbit and 2MHz input synchronously Interface type: RJ-45 Interface impedance: 120 2Mbit interface code: HDB3 2Mbit physical electrical feature comply to ITU-T G.703 recommendation

2.9 Power supply parameters

Voltage: -48V DC, tolerance range: -36V -72V220V AC, tolerance range: 180V 260V

Power consumption:


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5

Chapter 3 Structure and Indicator

3.1 Front panel

Figure 3-1 Front panel of OPCOM3103, without sub-card

3.2 Rear panel view

Figure 3-2 Rear panel of OPCOM3103-dual DC power supply

Figure 3-3 Rear panel of OPCOM3103-dual AC power supply

3.3 Interfaces on the front panel

The interfaces from left to right, up to down:

No. Name Description

1 SYN-T External clock output interface, supporting output 2Mbitand 2MHz synchronousely.

2 SYN-R External clock input interface, supporting input2Mbit and2MHz synchronousely.

3 CONSOLE RS-232 interface, for device configuration, managementand maintenance.

4 SNMP Network management interface, for device configuration,management and maintenance.

5 STM-1 STM-1 interface, including east-bound and west-boundinterfaces, connecting to SDH network.

6 FX (1, 2)Client side Ethernet optical itnerface, provide

100BASE-FX Ethernet access for subscribers, optional between FE port 1-2 optical interface or electrical interface.

7 FE (1~8) Client side Ethernet electrical itnerface, provide 10/100MEthernet access for subscribers, optional between FX port


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1-2 optical interface or electrical interface.

8 E1 (1~32) Client side E1 itnerface, provide 10/100M Ethernet accessfor subscribers, each RJ45 supports two paths of E1.

3.4 Indicator explanation

NO. Name Color Description

1 SYS green Flickering: CPU is working in order

2 SWH green Light ON when there is protection switch happening.

3 PWR1, PWR2 green The power supply working status: ON indicates normal, OFFindicates abnormal.

4 MAS green Current clock mode of the device: ON indicates the clock is

local oscillator or external clock, other mode will shows OFF.

5 SYN-R green

2Mbit external clock receiving status of current device:

ON: 2Mbit has no LOS or LOF alarm;

Flickering: 2Mbit has LOF alarm;

OFF: 2Mbit has LOS alarm.

6 SNMP_LNK/ACT greenON: SNMP interface LINK up;

Flickering: data transmitting or receiving.

7 SNMP_100M green ON: SNMP interface speed at 100M; OFF: 10M

8 STM1_LOS red ON: STM-1 optical interface receives LOS

9 STM1_LOF red ON: STM-1 optical interface receives LOF

10 FX_LNK/ACT green ON: FX interface LINK up;


11 FE_LNK/ACT green ON: FE interface LINK up;


12 FE_100M orange ON: FE interface speeds at 100M; OFF: 10M.


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7

Chapter 4 Function and Application

4.1 Network element type

OPCOM3103 is suitable for network end access. It can be flexible configured as TM, ADM.

1). Terminal multiplexer (TM)

The main function of terminal multiplexer (TM) is multiplexing PDH signal or Ethernet signal tohigh speed SDH signal and de-multiplexing high speed SDH signal to PDH signal or Ethernet signal.

STM-1 opticalsignal

E1/DS3/E3/FE/GE

Figure 4-1 TM network element type

2). Add/Drop multiplexer (ADM)

Add/Drop multiplexer (ADM) is the most common network element type in SDH network, it has both synchronous multiplexing function and digital cross connection function, and can add/drop thetributary signal flexibly. Unlike TM, ADM not only implements multiplexing and de-multiplexing ofsignal but also finishes cross connection between line signal and tributary signal or signals amonglines. For example the access E1 signal can be multiplexed to both east STM-1 signal and westSTM-1 signal.

S T M - 1o p t i c a l s i g n a l

E 1 / D S 3 / E 3 / F E / G E

S T M - 1o p t i c a l s i g n a l

Figure 4-2 ADM network element type


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4.2 Network topology

OPCOM3103 has flexible networking capacity, it is in support of point to point, chain and ringnetwork topology structures.

1). Point-to-point network consists of 2 TM devices and transmits E1, DS3, E3, FE and GE, etc.services.

S T M - 1 o p t ic a ls i g n a l

E 1 / D S 3 / E 3 / F E /G E

T M T M

E 1 / D S 3 / E 3 / F E /G E

Figure 4-3 Point-to-Point topology

2). Chain topology

Chain topology is made up of 2 TM devices and several ADM devices. Data is often transmitted in bi-direction and less optic fibers are needed.

STM-1 opticalsignal

E1/DS3/E3/FE/GE

TM ADM

STM-1optical signal

TM

E1/DS3/E3/FE/GE E1/DS3/E3/FE/GEFigure 4-4 Chain topology

3). Ring topology

OPCOM3103 can organize ring topology network at STM-1 speed. If using 2STM1 sub-card, 1+1 protection uplink of STM-1 interface is avaialbe and realize flexible service configuration and highreliability, it also can realize 2F SNC-P (2-Fiber Single direction Channel Protection) function.


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E1/DS3/E3/FE/GE

E1/DS3/E3/FE/GE E1/DS3/E3/FE/GE

STM-1 uplink

STM-1 ring

ADM

ADM

ADM ADM

E1/DS3/E3/FE/GE

Figure 4-5 Ring topology

4.3 Clock

The clock mode of OPCOM3103 is related to master/slave station setting. Master station uses freerun mode or external clock; slave station uses recovered clock. The slave station provides recoverclocks from STM-1 or from E1 interface. OPCOM3103 will switch to the secondary inputting byautomation if the primary reference clock is unavailable (including LOS, LOF or clock levelchanging, etc.), and if the primary reference clock has recovered it will switch back by software.

4.4 Protection switch

OPCOM3103 provides 1+1 LP protection in the case that the optical fiber is broken off, PCB isdamaged or middle nodes become invalid, and the protection switch time will be less than 50ms.There are two kinds of protection switch: automatic protection switch and force protection switch,the force protection switch can be configured through network management.

1. Protection switch in chain topology

As figure shows below, signal is transmitted from both ends but received the better one in chain 1+1 path protection. One of the transmitting lines is working line and the other one is protection line.Receiving end will select a better quality signal from the two lines. Generally the Rx data is fromworking line and if there is protection switch the Rx data is from protection line. When the workingline has recovered the Rx data is from working line again.


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work

Opticalport 1 OPCOM310

3

OPCOM3103

OPCOM3103

OPCOM3103

protect Opticalport 2

Opticalport 1

Opticalport 2

2. 2F SNC-P

The principle of 2F SNC-P protection is that: transmit data bi-directionally, receive data

bi-directionally, select one better quality signal and use the other signal as standby. 2F SNC-P usesone fiber to transmit service, called S fiber (working fiber); uses another fiber for protection, called Pfiber (protection fiber). If every node of the ring works normally, the direction Tx signal and Rxsignal is the same (that is to say, if a note transmits data clockwise so does it receives data), but therouting is not the same (e.g. if station A transmits data to station C, the routing is A B C; and ifstation A receives data from C, the routing is C D A, so the middle stations passed by are notsame).

The Tx and Rx routing is in figure (a) when it works normally: data from A to C is transmitted bothin S fiber and P fiber, S fiber will transmit the data from A to C clockwise though middle station B,

and P fiber will transmit the data from A to C anticlockwise though middle station D. C receives twosignals bi-directionally and it will select a better quality signal (the signal in working line S fibergenerally). Data from C to A is the same process.

The Tx and Rx routing is in figure (b) when the fiber is cut off: for the signal in S fiber is lost theswitch will shift from S fiber to P fiber to receive the data transmitted by P fiber, so the service

between station A and C will go on. After 5~12 minutes the switch will recover if the fault isresolved and the service from C to A will not be effected.


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A

B

C

D

S

S

P

P

CA AC

ACCA

A

B

C

D

S

S

P

P

CA AC

ACCA

(a)

(b) switch


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Chapter 5 Installation and Preparation

5.1 Cautions

Check whether the type of device, spare parts and number are same with that of packing list. Makesure the device appearance is in excellent condition. There must be drying process if the device has

been damp.

To make sure normal working of the device, please follow the following steps:

Read this manual carefully Fix and install the device Prepare the fiber and E1 cable

Connect the fiber or other cables If this is your first use of the device, please refer to configuration manual and command

manual. Use the device properly

5.2 Installation

5.2.1 Cable preparation

The cables you need to prepare are:

Table 5-1 OPCOM3103 cable specifications

Interface Specifications

10/100Mbps Ethernet electrical interfaceand network mangament interface 100Base-T CAT-5 UTP

CONSOLE cable Refer to appendix.(accessories provide)

E1 interface, external clock inputinterface, external clock output interface CAT-5 UTP, see appendis for making.

SFP module interface LC-LC or LC-SC connector, single modeor multi-mode fiber, can be customized.

Power supply interfaceAC, 220V/10A power supply cable.

-48V DC, -48V/10A power supply cable.

5.2.2 Connect to optical interface

Connect the fiber to the SDH optical interface on front panel, if proper connected the LOS indicatorswill turn off.

5.2.3 Connect E1 interface

OPCOM3103 provides 120 E1 interfaces. E1 interfaces are RJ45 connector, each connector


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provides 2 E1 signals. The pin arrangement of interface refers to the appendix.

5.2.4 Connect Ethernet electrical interface

LNK/ACT indicator of Ethernet interface will be ON if Ethernet electrical interface is connectedrightly.

5.2.5 Connect SNMP port

Use Ethernet cable to connect SNMP port with related network device, if connected correctly,LNK/ACT indicator will turn ON.

5.2.6 Connect CONSOLE port

Connect the RJ45 connector of CONSOLE cable with CONSOLE port on the front panel. Connect the DB9 connector PC serial interface. Start Hyper Terminal on PC:

Configure OPCOM3103 network management and services, the detailed configuraiton pleaserefer to configuration guide and commands notebook.

5.2.7 Power on

If you use DC as power supply, connect the ground with protection grounding first, -48V with lowlevel voltage cable and 0Vwith high level voltage cable. Make sure of firm installation and noshort-circuit, then power on.

If you use 220V AC, use the power supply cable in accessories.

After powered on, PWR indicator light will be normal, and the system has finished initialized if SYS


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starts to flicker.

5.2.8 Service configuration

OPCOM3103 supports timeslot configuration of VC12/VC3 level, please refer to commandsnotebook and configuration guide.

5.3 Topology connections

Different topology has different connection methods, and different protection mode also has differentconnection methods.

5.3.1 Point-to-point topology

Point-to-point topology is very simple and the connection method will not change no matter protected or not. See in the following figure:

OPCOM3103

OPCOM3103

Opticalport 1

Opticalport 1

Opticalport 2

Opticalport 2

Figure 5-1 Point-to-point topology

5.3.2 Chain topology without protection

See in figure below:

OPCOM3103

OPCOM3103 OPCOM3103

Opticalport 1

OPCOM3103

Opticalport 1

Opticalport 1

Opticalport 2

Opticalport 2

Opticalport 1

Figure 5-2 Chain topology without protection

5.3.3 Chain topology with protection



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15

work

OPCOM3103

OPCOM3103

Optical port 1

protect

Opticalport 1

Opticalport 1

Opticalport 1

Opticalport 1

Optical port 1

Optical port 2 Opticalport 2Opticalport 2 Optical port 2

Opticalport 2

Opticalport 2

Figure 5-3 Chain topology with protection

5.3.4 2-fiber ring topology


Optical

port 1

Optical

port 1

Opticalport 1

Opticalport 1

Optical

port 2

Optical

port 2

Opticalport 2

Opticalport 2

Figure 5-4 2-fiber ring topology


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Chapter 6 FAQ

If you have problems during the installation or application, please try to solve them through thefollowing suggestions. And if it does not work, please contact the sellers to get technical supports.

PWR light of power supply card turns OFF.

Check the power supply cable first, and then the power supply card.

LOS alarms of SDH optical interface

That is to say SDH optical interface losses of receiving signal. First, check whether the fiber isconnected correctly; second, if there are still alarms when self-loop the cable (perhaps opticalattenuation is needed), change the cables; if there are still alarms then there is something wrong withdevice.

Indicator light of Ethernet interface or SNMP network management interface is OFF.

First, check whether the cable works normally or not; then, check whether the devices connect toEthernet interface or SNMP network management interface works normally or not. And make surethe cable is correct.

E1 line is not connective

Check the E1 cable, pin arrangement, optical interface connection, timeslot setting and watch alarmreported to EMS, the loopback function provided by network mangement can locate the fault.


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Appendix A Acronyms

Acronyms Full-spellingSTM-1 Synchronous Transport Module(-N)

SDH Synchronous Digital Hierarchy

TM Terminal Multiplexer

ADM Add/Drop Multiplexer

GFP The Generic Frame Protocol

LAPS Link Access Procedure SDH

LCAS Link capacity adjustment scheme

EOS Ethernet Over SDH


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Appendix B CONSOLE cable making

CONSOLE interface cable:

CONSOLE interface uses RJ45 connector to connect with device and DB9 plug to connect with PC,and the pin arrangement is as follows:

RJ-45 Pin No. Function DB9 Pin No.

1 NC -

2 DSR# 63 RxD 34 GND 5

5 GND 56 TxD 2

7 DTR# 48 NC -

- in the table indicates relevant RJ45 pin is not connected (NC).

The pin of DB9 that has not list out in the table is not connected (NC).


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Appendix C E1 cable making

Pin definition of device E1 120 balanced interface as follows:

Pin NO. 1 2 3 4 5 6 7 8

Definition TD1+ TD1- RD2+ RD1+ RD1- RD2- TD2+ TD2-

Meaning TX+ TX- RX+ RX+ RX- RX- TX+ TX-

RJ45 connector RJ45 socket

120 balanced interface is connected to other devices, you need clear the pin definitions of otherdevices. Twisted at both ends of pin connection is as follows:

RC series BALANCE-RJ45 E1 transmission device balanced interface

TD output

TD output

RD input

RD input

Note that when connecting twisted-pair, TD+ and TD of the two twisted-pair, you need twisttogether to use a pair, and RD+ and RD- are also twisted together and used in pair.


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Appendix D External clock synchronous interface cable making

Definition of device external clock synchronous output interface(SYN-T):Pin NO. 1 2 3 4 5 6 7 8

Definition T_2Mb+ T_2Mb- idle idle idle idle T_2MHz+ T_2MHz-

Meaning 2Mb clockoutput+

2Mb clockoutput-

Null Null Null Null 2MHz clockoutput+

2MHz clockoutput-

The pin definitions of SYN-R connecting to external clock synchronous output interface:

Pin NO. 1 2 3 4 5 6 7 8

Definition idle idle R_2MHz+ R_2Mb+ R_2Mb- R_2MHz- idle idle

Meaning Null Null 2MHz clockinput+

MB clockinput+

2MB clockinput-

2MHz clockinput-

Null Null

RJ45 connector RJ45 socket

Make sure the pin definition of other devices that connects on the external clock synchronousinterface.

Pay attention that T_2Mb+ and T_2Mb- are twisted as a pair, R_2Mb+ and R_2Mb- are twisted as a

pair. And so does T_2MHz+, T_2MHz- and R_2MHz+, R_2MHz-.


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OPCOM3103 User Manual 200907

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