OPCOM3101-155 User Manual
Contents
1. ADM lt 00 a00 STM 1 ing aa E1 electrical signal ADM E1 electrical signal Figure 4 5 ring topology 4 4 Clock The clock mode of OPCOM3101 155 is related to master slave station Master station uses free running mode and slave station uses recovered clock For slave station there are two recovered clock references the first optical line primary reference clock and the second optical line standby reference clock OPCOM3101 155 will switch the reference clock from the first optical line to the second if the primary reference clock is not available including there is LOS and the frequency offset is more than 4 6ppm and if the primary reference clock has recovered it will switch back 4 5 Protection switch OPCOM3101 155 provides 1 1 low path protection in the case that the optical fiber is broken off PCB is damaged or middle notes are 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 In the following figure in chain 1 1 path protection between two ends there are two transmission lines transmitting the data and every note receives the data twice One of the transmitting lines is working line and the other one is protection line Receiving end will select a better q2. OPCOM3101 155 User Manual 200610 doc 1 Overview 1 1 Introduction OPCOM3101 155 is a compact 63 E1 SDH optical multiplexer developed by Raisecom there are two types OPCOM3101 155 and OPCOM3101 155 BL the difference between the two types is OPCOM3101 155 provides 75Q unbalanced El interface and OPCOM3101 155 BL provides 120Q balanced El interface And in this manual OPCOM3101 155 indicates both of the two types OPCOM3101 155 can provide 63 El and technical feature and indexes meet every norm of ITU T and national SDH It deploys 1U structure and is suitable for the access of end business of Telecom OPCOM3101 155 is mainly applied to service access and transmission of access layer in communication networks it also can make up communication networks through El interface together with access devices GSM mobile cellular base station ETS wireless access base station switches and routers OPCOM3101 155 is available for flexible topology point to point chain and ring and supports 1 1 low path protection to guarantee high reliable transportation You can manage OPCOM3101 155 by in band or out of band network management channel Raisecom network management platform NVIEW NNM is also available for figure information of monitoring alarms management and maintenance 1 2 Main Features Provide two STM 1 interfaces with options of either two individual STM 1 or 1 1 path protection Provide 63 El Support 126 126 VC12 non blocking cross conne
3. of CONSOLE cable with CONSOLE interface on the front panel e Connect the DB9 connector PC serial interface e Start Hyper Terminal on PC COM Properties AAA 2120 Port Settings Bits per second s Data bits wH Parity None e Stop bits 1 Flow control None x Restore Defaults OK Cancel Apply e Configure the network management of OPCOM3101 155 please refer to command manual and configuration manual of OPCOM3101 155 5 2 6 Power on If you use 48V DC as power supply connect the ground with protection grounding first 48V with low level voltage cable and OV with high level voltage cable Make sure of firm installation and no short circuit then power on If you use 220V AC use the affixing power supply cable After powered on PWR indicator light will be normal and the system has finished initialized if SYS starts to flash Appendix A Terminologies and abbreviations STM 1 Synchronous Transport Module N SDH Synchronous Digital Hierarchy TM Terminal Multiplexer ADM Add Drop Multiplexer Appendix B FAQ If you have problems during the installation or application please try to solve them through the following suggestions And if it does not work please contact the sellers to get technical supports e PWR light of power supply card turns OFF Check the power supply cable first and then the power supply card LOS alarms
4. of SDH optical interface That is to say there is receiving signal loss First check whether the cable is connected correctly second if there are still alarms when self loop the cable perhaps optical attenuation is needed change the cables if there are still alarms then there is something wrong with device Indicator light of SNMP network management interface is OFF First check whether the cable works normally or not then check whether the devices connect to SNMP network management interface works normally or not And make sure the cable is correct El channel failed Check the El cable optical interface and time slot configuration check the alarms in the EMS and use loop back function to find where the problem is Appendix C How to Make CONSOLE Cable CONSOLE cable CONSOLE interface uses RJ45 connector and the pin definition is as follows RJ 45 Pin Signal Relative PC number Pin number 1 NC 2 DSR 6 3 RxD 3 4 GND 5 5 GND 5 6 TxD 2 7 DTR 4 8 NC Appendix D How to Make E1 Cable 1 Making method of CBL E1 DB37F 16BNC 2 5M is following 0000000000 0CGO0CO 4 n2 o Express core of coaxial cable it indicates weld of pin and core of coaxial cable 2 Express shield layer of coaxial cable it ind
5. provides Multi mode fiber or single mode fiber with SC SC or SC FC connector Optical fiber customized There are two types of EI cable for OPCOM3101 155 El cable CBL E1 DB37F 16BNC 75ohm cable for OPCOM3101 155 CBL EI S DB37F 8RJ45 120ohm cable for OPCOM3101 155 BL Power socket AC 220V 10A power supply cable DC user prepares and Raisecom dose not provide 5 2 2 Connect 155M SDH Interface e Connect the fiber to the SDH interfaces on front panel e If proper connected the LOS indicator light will turn off Prepare the fiber and E1 cable 5 2 3 Connect El electrical port OPCOM3101 155 provides 75Q E1 cable and OPCOM3101 155 BL provides 120Q E1 cable Connector of 75Q cable in user side is BNC and each El cable includes 8 IN and OUT there is El number on each coaxial RX and TX indicate the SDH signal direction For example RXI stands for the RX of the first El and TXI stands for the TX of first El Connector of 120 cable in user side is RJ45 each RJ45 connects to one El signal and the definition of RJ45 signal is 1 2 receiving and 4 5 transmitting There are labels on each RJ45 cable to indicate E1 channel For example CH1 indicates the first El 5 2 4 Connect SNMP network management port Connect the SNMP network management port through Ethernet cable with related device and the LNK ACT will ON if the connection is correct 5 2 5 Connect CONSOLE port Connect the RJ45 connector
6. 3 4 Function and E uite iO e 14 ATL Real Panel View setate Sex tates tom test dd d Sp tas os t ne ange Nu 14 4 2 14 4 3 Network Topology SRM 14 NC A 16 4 5 Protection Switch tei e ID P debe ep ee EE e REIS 16 5 IEEIE DIE duvzirivcitIm 19 Een M 19 5 2 Installationc st cite e eletent AE AAA ee A tn an EE AR SE A nn 19 5 2 1 Cabl preparation sine cede tete ttes DEN DR EE lend ears Rees Te rte 19 5 2 2 Connect 1SSMSDE Interface titine nn UR Cete RE 19 5 2 3 Connect El electrical port ss 20 5 2 4 Connect SNMP network management port ss 20 5 2 5 Connect CONSOLE port erneten pana a ge 20 RAUM nn Matin ciel cage ages ne Msn A E A 20 Appendix A Terminologies and abbreviations scscsccsssscsssssssssscssscscssessscscccsssscssssesencssescesesenscseneesenes 22 Appendix B BAQ eser Wieiasccnccctenctentecdsacctencudecdecduedctencvcetevcduedcdunctunccecduessdunciuscvvaducesduectcesveatneseescuttooss 23 Appendix C How to Make CONSOLE Cable e 00000 00000000 eene eene et ene stones etta setas etse st ese seen etas etos 24 Appendix D How to Make E1 Cable 04006046604 6006 6006000600 6600606606 06 9606 9606 2606 60660066 60660666 606606 6606 6606 66004 6066 60666 60660066 6666 6066 25
7. RASECOM WWW raisecom com Fi OPCOM3101 155 User Manual 2006 10 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 parts can 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 The information contained in this document is subject to change without notice Copyright Notices Copyright 2006 Raisecom All rights reserved No part of this publication may be excerpted reproduced translated or utilized in any form or by any means electronic or mechanical including photocopying and microfilm without permission in Writing from Raisecom Technology Co Ltd Trademark Notices RA SECOM is the trademark of Raisecom Technology Co Ltd Java is a U S trademark of Sun Microsystems Inc Microsoft is a U S registered trademark of Microsoft Corporation Wi
8. ate 9600bps 2 5 SNMP Network Management Interface Parameters e Interface type RJ 45 e Compliant with IEEE802 3 standard e 10 100M auto adapt e Cable sequence is the same with that of PC 2 6 Power Supply Parameters e Voltage 48V DC tolerance range 36V 72V 24V DC tolerance range 18V 36V 220V AC tolerance range 180V 260V e Power consumption lt 20W 2 7 Working Environment e Temperature 5 C 50 C e Humidity lt 90 35 C 3 Structure and Indicator Explanation 3 1 Front Panel View Figure 3 1 OPCOM3101 155 front panel RAISECOM 113101 PELLE SYS PARI AL LMHMACT LOS PAR PAR2 MAS 1004 LF Figure 3 2 OPCOM3101 155 Indicator explanation of front panel AA4 SE COM opcoms 01 SYS Pur AM CONSOLE 105 CRC Indicator Number Explanation Description color 1 Sy Green System indicator flashing indicates normal work status of CPU Green Power supply indicator steady on indicates normal 2 PWR work status of power supply Red First power supply alarm steady on indicates abnormal 3 PWRI j me j status of power supply and off indicates normal Red Second power supply alarm steady on indicates 4 PWR2 abnormal status of power supply and off indicates normal Red Global alarm indicator steady on indicates there is 5 ALM alarm Green Steady on indicates master station and off indicates 6 MAS slave station 7 CONSOLE Local control platform conn
9. ction Network Element type TM and ADM Network topology type point to point chain and ring provide 1 1 low path protection and the switch time is less than 50ms Master slave clock mode supports clock holding locking and free running compliant with G 813 standard Provide SNMP and CONSOLE network management interfaces and ECC embedded channel available for both local and remote field upgrade and is very convenient for maintenance Provide fault alarm and performance monitor optical interface and E1 interface provide loop back function for convenient equipment maintenance Optical interface supports Automatic Laser Shutdown function Redundant power supply 220V 48V and 24V Power consumption lt 20W temperature 5 50 C 1 3 Explanation of device number Whole device number OPCOM3101 155 A B OPCOM3101 155 BL A B Number explanation OPCOM3101 indicates the product series of OPCOM3100 155 indicate the optical interface rate is 155M BL indicates the El interface is 120Q balanced and without BL indicates75Qunbalanced A field indicates the type of optical connector M S1 S2 S3 SS1 SS2 M S1 S2 S3 SS1 SS2 dual strand multi mode and transmission distance is 0 2km dual strand single mode and transmission distance is 0 25km dual strand single mode and transmission distance is 10 60km dual strand single mode and transmission distance i
10. ects to PC series interface 8 SNMP Ethernet interface provides SNMP network management 9 Green SNMP interface indicator Steady on indicates normal LNK ACT mE connection with Ethernet flashing indicates receiving indicator data T 100M Orange SNMP interface indicator Steady on indicates Ethernet Indicator rate is 100M and off indicates 10M Red Steady on red indicates loss of optical signal off 11 15 LOS Indicator indicates normal 12 14 Red Steady on red indicates loss of SDH frame off LOF Indicator indicates normal 13 16 1 and 2 optical STM 1 optical interface interface Pus Power supply 18 is PWRI 17 is PWR2 AC 220V DC 48V 24V is socket optional 3 2 Real Panel View Figure 3 3 OPCOM3101 155 real panel There is 8 DB37 connectors in real panel OPCOM3101 155 can provide 63 El DB37 connector with number 57 63 provides 7 E1 left each of DB37 connector provides 8 E1 4 Function and Application 4 1 Real Panel View Working process of OPCOM3101 155 basic service is 63 El signal in SDH can be mapped and de mapped 4 2 Basic Application Mode OPCOM3101 155 is suitable for network end access It can be configured as TM ADM Terminal multiplexer TM The main function of terminal multiplexer TM is multiplexing low speed El signal to high speed STM 1 SDH signal and de multiplexing high speed STM 1 SDH signal to low speed El signal gt STM 1 opt
11. es ensure that power is removed from the DC circuit Locate the 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 in the building OPCOM3101 155 User Manual 200610 doc 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 proper electrostatic 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 good skin contact When removing or installing a component make sure the equipment end of your antistatic strap leash is connected to the ESD connection sockets on the front of the chassis or to a bare metal surface on the chassis Avoid contact between the component and your clothing The wrist strap only protects the component from ESD
12. gh middle station D C receives two signals bi directionally and it will select a better quality signal the signal in working line S fiber generally 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 the switch 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 is resolved and the service from C to A will not be effected 5 1 Cautions 5 Installation amp Preparation Check whether the type of device spare parts and number are same with that of packing list Make sure 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 e Read this manual carefully e Fix and install the device e Prepare the fiber and El cable e Connect the fiber or other cables e If this is your first use of the device please refer to configuration manual and command manual e Use the device properly 5 2 Installation 5 2 1 Cable preparation Table 5 1 OPCOM3101 155 cable specifications Interface 10 100Mbps Ethernet Specifications electrical 100Base T category 5 UTP the maximum distance is 100m users provide interface SNMP interface CONSOLE cable Refer to appendix Raisecom
13. he 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 potential safety hazards regarding product operation or maintenance to operator or service personnel Warning 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 with the laser class and other warnings as applicable will be attached near the optical transmitter The laser warning symbol may be also attached Warning Please observe the following precautions Before turning on the chassis with optic module make sure that the fiber optic cable is intact and 1s 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 the laser 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 may result in hazardous radiation exposure ATTENTION The laser beam may be invisible Always observe standard safety precautions d
14. ical signal E1 electrical signal 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 the tributary signal flexibly For example the access El signal can be multiplexed to both east STM 1 signal and west STM 1 signal STM 1 optical STM 1 optical i signal E1 electrical signal Figure 4 2 ADM network element type 4 3 Network Topology OPCOM3101 155 has flexible networking capacity it supports point to point chain and ring network topology 1 Point to point network consists of 2 TM devices and transmits STM 1 and El service TM STM 1 TM m optical sms signal E1 electrical signal E1 electrical signal Figure 4 3 point to point topology 2 Chain topology Chain topology is made up of two TM devices and several ADM devices Data is often transmitted in bi direction and less optical fiber is needed TM mum STM 1 optical DM 6704100609 M signal signal E1 electrical signal E1 electrical signal E1 electrical signal Figure 4 4 chain topology 3 Ring topology OPCOM3101 155 can organize ring topology network at STM Ispeed with flexible service configuration and high reliability it also can realize 2F SNC P function E1 electrical signal ADM E1 electrical signal
15. icates weld of pin and shield layer of coaxialcable Technics Requirement Outer layer End A Strip layer 35mm Outer layer End B Strip layer 500mm Encapsulation with protector Outer skin of inner layer Strip layer 25mm Outer skin of inner layer Strip layer 15mm Shield layer To bury line 25mm then feed it into plastic pipe Shield layer To bury line 15mm Inner layer Strip core 2mm Inner layer Strip core 2mm Connecting Welding Connecting Welding Encapsulation Plastic encapsulation of outer and inner film Encapsulation Plastic encapsulation of outer and inner film Notes End A is DB37F connector End B is BNC male female connector 2 Making method of CBL E1 S DB37F 8RJ45 2 5M is following CBL E1 S DB37F 8RJ45 2 5m D XK 2 1 CH 6 RJ45 DB37 RJ45 gt TWISTED ts gt TWISTED 2 edle IE TWISTED TWISTED D AR TWISTED 15 5 THISTED du AE D TWISTED so gt TWISTED TWISTED 15 5 S TWISTED 4 16 4 2 cd ag e TWISTED TWISTED 7 Mm 5 izl gt TWISTED gt TWISTED za eid bs 1 gt TWISTED ae 4 gt TWISTED Technics Requirement End A End B Outer layer Strip layer 35mm Outer layer Strip layer 18mm outer and inner film Shield layer Burying line then weld Shield layer Buryi
16. ndows NT is a U S registered trademark of Microsoft Corporation Windows 2000 is a U S registered trademark of Microsoft Corporation Windows XP is a U S registered trademark of Microsoft Corporation Windows and MS Windows are U S registered trademarks of Microsoft Corporation OPCOM3101 155 User Manual 200610 doc 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 Add 1120 Haitai Tower 229 Fourth North Loop Middle Road Haidian District Beijing 100083 Tel 86 10 82884499 Ext 878 International Department Fax 86 10 82885200 86 10 8288441 1 World Wide Web You can access the most current Raisecom product information on the World Wide Web at the following URL http www raisecom com Feedback Comments and questions about how the device works are welcomed Please review the FAQ in the related manual and if your question is not covered send email by using the following web page http www raisecom com en xcontactus contactus htm If you have comments on the device specification instead of the web page above please send comments to export raisecom com We hope to hear from you OPCOM3101 155 User Manual 200610 doc General Safety Instructions The following instructions serve as a general guide for t
17. ng line then shield layer of each cable crimp shield layer and ground of DB37 and ground of RJ45 Inner layer Strip core 2mm Inner layer Connecting Welding Connecting Crimping with special forceps Encapsulation Plastic encapsulation of Encapsulation Encapsulation with protector Notes DB37 diagram is same as CBL E1 DB37F 16BNC End A is DB37F connector End B is RJ45 connector 4V 52 BE AG BRATS BIR A Lo emt wa we dx Con soam RAISECOM TECHNOLOGY CO LTD HERR 86 10 82884499 600 AAU 8610 82883110 82884499 87
18. s 15 120km single strand single mode dual wavelength and transmission distance is 0 25km EAST optical interface TX wavelength is 1310nm and WEST optical interface TX wavelength is 1550nm single strand single mode dual wavelength and transmission distance is 10 50km EAST optical interface TX wavelength is 1310nm and WEST optical interface TX wavelength is 1550nm Optical connector is SC B field indicates power supply type AC indicates AC power supply DC indicates 48V DC power supply 1 4 Dimension OPCOM3101 155 adopts international 19 inch chassis and is convenient for installation Dimension 440 W mm 43 6mm H 330mm D 2 Technical Parameters 2 1 Basic Configuration e 2 STM 1I interface 63 El interface e Power supply module 220V AC 48VDC or 24V DC for redundant power supply e Management interface CONSOLE and SNMP interface 2 2 SDH Optical Interface Parameters e Rate 155 52Mb s e Coding NRZ Optical connector SC 2 3 El Interface Parameters e Rate 2048Kb s 50ppm e Interface coding HDB3 code e Physical electric feathers compliant with ITU TG 703 standards e Jitter performance compliant with ITU TG 823 standards e Input jitter compliant with ITU TG 823 standards e Output jitter compliant with ITU TG 783 standards e Interface Impedance OPCOM3101 155 75ohm OPCOM3101 155 BL 120ohm 2 4 Console Interface Parameters e Interface type RJ 45 e Compliant with RS232 standard e R
19. ter of 18 AWG or wider Rack mounted equipment should be mounted only in earthed racks and cabinets Always make the ground connection first and disconnect it last Do not connect telecommunication cables to ungrounded equipment Make sure that all other cables are disconnected before disconnecting the ground Connection of AC Mains Make 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 switch is provided in the equipment set it to the OFF position If the power cord cannot be readily disconnected in case of emergency make sure that a readily accessible circuit breaker or emergency switch is installed in the building installation Connection of DC Mains Unless otherwise specified in the manual the DC input to the equipment is floating in reference to the ground Any single pole can be externally grounded Due to the high current capability of DC mains systems care should be taken when connecting the DC 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 to qualified service and maintenance personnel Make sure that the DC supply is electrically isolated from any AC source and that the installation complies with the local codes Before connecting the DC supply wir
20. uality signal from the two lines Generally the Rx data is from working line and if there is protection switch the Rx data is from protection line When the working line has recovered the Rx data is from working line again Optical Optical port 1 OPCOM3101 OPCOM3101 port 1 155 work 155 Optical OPCOM3101 OPCOM3101 Optical port 2 155 protect 155 port 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 uses one fiber to transmit service called S fiber working fiber uses another fiber for protection called P fiber protection fiber If every note of the ring works normally the direction Tx signal and Rx signal is the same that is to say if a note transmits data clockwise so does it receives data but the routing is not the same e g if station A transmits data to station C the routing is A B C and if station A receives data from C the routing is C D A so the middle stations passed by are not same See in the following figure P C at A A S L NZ Y b CA AC switch The Tx and Rx routing is in figure a when it works normally data from A to C is transmitted both in 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 thou
21. uring installation operation and maintenance of this product Only qualified and authorized service personnel should carry out adjustment maintenance or repairs to this product No installation adjustment maintenance or repairs should be performed by either the operator or the user OPCOM3101 155 User Manual 200610 doc 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 light harms to operator s eyes Handling Energized Products General Safety Practices Do not touch or tamper with the power supply when the power cord is connected Line voltages may be present inside certain products even when the power switch if installed is in the OFF position or a 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 jewelry or 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 Grounding is 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 wire with a diame
22. voltages on the body ESD voltages on your clothing can still cause component damage Always place a card component side up on an antistatic surface in an antistatic card rack or in a static shielding bag If you are returning the item to the factory immediately place it in a static shielding bag Handle Modules by the metal card carrier edges only Avoid touching the board or any connector pins OPCOM3101 155 User Manual 200610 doc CONTENTS 1 OVEF VIEW H 8 T1 Introduction set tn ete E i i ade A Madea tH aa Sadie te Ne 8 1 2 Main Features rt rh RE SUI Rp sem e 8 1 3 8 I Dimension eb HERO RE EC RR Ue EE RP ERES 9 2 Technical Parameters 10 2 1 Basic Contigur tion cei e E P SE E e T e RA tien 10 22 SDH Optical Interface Parameters i anos ome bera ee Riva ee ae nn iude end 10 2 3 ET Interface P rameters ce reda edges 10 2 4 Console Interface Parameters ss tee munie eet te eee ern 10 2 5 SNMP Network Management Interface Parameters 10 10 2 7 Working Environment ciue oaee utet tute dette dde tn de ite Ode edt Ue tn 11 3 Structure and Indicator Explanation csssccscsscsssssssscsssccscscsscssecsscscsssscsesscssscssssessscecssossesencessscsessones 12 3 1 Front Panel Ere eh e ES 12 1
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