optix osn 550 hardware description(v100r006)

OptiX OSN 550 Multi-Service CPE OpticalTransmission SystemV100R006C01Hardware Description

Issue 02Date 2013-01-18

HUAWEI TECHNOLOGIES CO., LTD.

Issue 02 (2013-01-18) Huawei Proprietary and ConfidentialCopyright Huawei Technologies Co., Ltd. i

Copyright Huawei Technologies Co., Ltd. 2013. All rights reserved.No part of this document may be reproduced or transmitted in any form or by any means without priorwritten 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 respectiveholders.

NoticeThe purchased products, services and features are stipulated by the contract made between Huawei andthe customer. All or part of the products, services and features described in this document may not bewithin 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 orrepresentations of any kind, either express or implied.The information in this document is subject to change without notice. Every effort has been made in thepreparation of this document to ensure accuracy of the contents, but all statements, information, andrecommendations in this document do not constitute a warranty of any kind, express or implied.

Huawei Technologies Co., Ltd.Address: Huawei Industrial Base

Bantian, LonggangShenzhen 518129People's Republic of China

Website: http://www.huawei.comEmail: [email protected]

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

Issue 02 (2013-01-18) Huawei Proprietary and ConfidentialCopyright Huawei Technologies Co., Ltd.

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About This Document

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

Product Name Product VersionOptiX OSN 550 V100R006C01iManager U2000 V100R008C00

Intended AudienceThis document describes the OptiX OSN 550 in terms of hardware architecture, boards,cables.This document is intended for: Network planning engineers Hardware installation engineers

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

Symbol DescriptionDANGER indicates a hazard with a high level or mediumlevel of risk which, if not avoided, could result in death orserious injury.WARNING indicates a hazard with a low level of riskwhich, if not avoided, could result in minor or moderateinjury.CAUTION indicates a potentially hazardous situation that,if not avoided, could result in equipment damage, data loss,performance deterioration, or unanticipated results.

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


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Symbol DescriptionProvides a tip that may help you solve a problem or savetime.Provides additional information to emphasize orsupplement important points in the main text.

GUI ConventionsConvention MeaningBoldface 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 HistoryChanges between document issues are cumulative. The latest document issue contains all thechanges made in earlier issues.

Updates in Issue 02 (2013-01-18) Based on Product Version V100R006C01This document is the second issue for product version V100R006C01. Compared with issue01 of product version V100R006C01, version 02 includes the following updates inV100R006C01SPC100: Added EF8F boards' support for FE electrical ports. Added the number of supported line clock sources to SDH boards.

Updates in Issue 01 (2012-10-31) Based on Product Version V100R006C01This document is the first issue for product version V100R006C01. Compared with issue 1 ofproduct version V100R006C00, this issue incorporates the following updates: Added the 1x10GE Ethernet processing board EX1. Added the 4xchannelized STM-1 service processing board CQ1. Optimized the "Functions and Features" section of the system control, switching, and

timing board. Optimized the "Functions and Features" sections of the packet processing boards.

Updates in Issue 01 (2012-04-30) Based on Product Version V100R006C00This issue is used for first office application (FOA).

OptiX OSN 550 Multi-Service CPE OpticalTransmission SystemHardware Description Contents


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Contents

About This Document.................................................................................................................... ii1 Chassis.............................................................................................................................................12 Boards and Their Appearances...................................................................................................5

2.1 Board List...........................................................................................................................................................52.2 Board Appearance............................................................................................................................................10

3 System Control, Switching, and Timing Boards...................................................................143.1 PCX..................................................................................................................................................................14

3.1.1 Version Description................................................................................................................................ 143.1.2 Functions and Features........................................................................................................................... 153.1.3 Working Principle and Signal Flow........................................................................................................283.1.4 Front Panel..............................................................................................................................................313.1.5 DIP Switches and CF Card..................................................................................................................... 333.1.6 Valid Slots...............................................................................................................................................363.1.7 Feature Code...........................................................................................................................................373.1.8 Technical Specifications......................................................................................................................... 38

3.2 CXL................................................................................................................................................................. 483.2.1 Version Description................................................................................................................................ 483.2.2 Functions and Features........................................................................................................................... 493.2.3 Working Principle and Signal Flow........................................................................................................513.2.4 Front Panel..............................................................................................................................................533.2.5 DIP Switches and CF Card..................................................................................................................... 553.2.6 Valid Slots...............................................................................................................................................573.2.7 Feature Code...........................................................................................................................................573.2.8 Technical Specifications......................................................................................................................... 58

4 Packet Processing Boards...........................................................................................................654.1 EF8F.................................................................................................................................................................65

4.1.1 Version Description................................................................................................................................ 654.1.2 Functions and Features........................................................................................................................... 664.1.3 Working Principle and Signal Flow........................................................................................................694.1.4 Front Panel..............................................................................................................................................724.1.5 DIP Switches and Jumpers..................................................................................................................... 74



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4.1.6 Valid Slots...............................................................................................................................................744.1.7 Feature Code...........................................................................................................................................744.1.8 Technical Specifications......................................................................................................................... 74

4.2 EM6T/EM6F....................................................................................................................................................774.2.1 Version Description................................................................................................................................ 774.2.2 Functions and Features........................................................................................................................... 774.2.3 Working Principle and Signal Flow........................................................................................................824.2.4 Front Panel..............................................................................................................................................854.2.5 DIP Switches and Jumpers..................................................................................................................... 874.2.6 Valid Slots...............................................................................................................................................884.2.7 Feature Code...........................................................................................................................................884.2.8 Technical Specifications......................................................................................................................... 88

4.3 EG4C............................................................................................................................................................... 944.3.1 Version Description................................................................................................................................ 944.3.2 Functions and Features........................................................................................................................... 944.3.3 Working Principle and Signal Flow........................................................................................................994.3.4 Front Panel............................................................................................................................................1014.3.5 DIP Switches and Jumpers................................................................................................................... 1044.3.6 Valid Slots.............................................................................................................................................1044.3.7 Feature Code.........................................................................................................................................1044.3.8 Technical Specifications....................................................................................................................... 104

4.4 EX1................................................................................................................................................................ 1104.4.1 Version Description...............................................................................................................................1104.4.2 Functions and Features......................................................................................................................... 1104.4.3 Working Principle and Signal Flow......................................................................................................1144.4.4 Front Panel............................................................................................................................................1164.4.5 DIP Switches and Jumpers....................................................................................................................1174.4.6 Valid Slots............................................................................................................................................. 1174.4.7 Feature Code.........................................................................................................................................1174.4.8 Technical Specifications....................................................................................................................... 117

4.5 MD1............................................................................................................................................................... 1204.5.1 Version Description.............................................................................................................................. 1204.5.2 Functions and Features......................................................................................................................... 1204.5.3 Working Principle and Signal Flow......................................................................................................1224.5.4 Front Panel............................................................................................................................................1254.5.5 DIP Switches and Jumpers................................................................................................................... 1274.5.6 Valid Slots.............................................................................................................................................1274.5.7 Feature Code.........................................................................................................................................1274.5.8 Technical Specifications....................................................................................................................... 128

4.6 CQ1................................................................................................................................................................ 1284.6.1 Version Description.............................................................................................................................. 1284.6.2 Functions and Features......................................................................................................................... 128



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4.6.3 Working Principle and Signal Flow......................................................................................................1314.6.4 Front Panel............................................................................................................................................1334.6.5 DIP Switches and Jumpers................................................................................................................... 1344.6.6 Valid Slots.............................................................................................................................................1354.6.7 Feature Code.........................................................................................................................................1354.6.8 Technical Specifications....................................................................................................................... 135

5 SDH Boards................................................................................................................................ 1385.1 SL1D.............................................................................................................................................................. 138

5.1.1 Version Description.............................................................................................................................. 1385.1.2 Functions and Features......................................................................................................................... 1385.1.3 Working Principle and Signal Flow......................................................................................................1405.1.4 Front Panel............................................................................................................................................1425.1.5 DIP Switches and Jumpers................................................................................................................... 1435.1.6 Valid Slots.............................................................................................................................................1435.1.7 Feature Code.........................................................................................................................................1435.1.8 Technical Specifications....................................................................................................................... 143

5.2 SL1Q.............................................................................................................................................................. 1455.2.1 Version Description.............................................................................................................................. 1465.2.2 Functions and Features......................................................................................................................... 1465.2.3 Working Principle and Signal Flow......................................................................................................1475.2.4 Front Panel............................................................................................................................................1495.2.5 DIP Switches and Jumpers................................................................................................................... 1505.2.6 Valid Slots.............................................................................................................................................1505.2.7 Feature Code.........................................................................................................................................1505.2.8 Technical Specifications....................................................................................................................... 151

5.3 SL4D.............................................................................................................................................................. 1535.3.1 Version Description.............................................................................................................................. 1535.3.2 Functions and Features......................................................................................................................... 1535.3.3 Working Principle and Signal Flow......................................................................................................1555.3.4 Front Panel............................................................................................................................................1575.3.5 DIP Switches and Jumpers................................................................................................................... 1585.3.6 Valid Slots.............................................................................................................................................1585.3.7 Feature Code.........................................................................................................................................1585.3.8 Technical Specifications....................................................................................................................... 158

6 PDH Boards................................................................................................................................ 1626.1 SP3D.............................................................................................................................................................. 162

6.1.1 Version Description.............................................................................................................................. 1626.1.2 Functions and Features......................................................................................................................... 1626.1.3 Working Principle and Signal Flow......................................................................................................1636.1.4 Front Panel............................................................................................................................................1656.1.5 DIP Switches and Jumpers................................................................................................................... 168



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6.1.6 Valid Slots.............................................................................................................................................1686.1.7 Feature Code.........................................................................................................................................1686.1.8 Technical Specifications....................................................................................................................... 169

6.2 PL3T.............................................................................................................................................................. 1706.2.1 Version Description.............................................................................................................................. 1706.2.2 Functions and Features......................................................................................................................... 1706.2.3 Working Principle and Signal Flow......................................................................................................1716.2.4 Front Panel............................................................................................................................................1736.2.5 DIP Switches and Jumpers................................................................................................................... 1736.2.6 Valid Slots.............................................................................................................................................1746.2.7 Feature Code.........................................................................................................................................1746.2.8 Technical Specifications....................................................................................................................... 174

7 EoS Boards.................................................................................................................................. 1757.1 EFS8...............................................................................................................................................................175


7.2 EGT1..............................................................................................................................................................1837.2.1 Version Description.............................................................................................................................. 1837.2.2 Functions and Features......................................................................................................................... 1837.2.3 Working Principle and Signal Flow......................................................................................................1847.2.4 Front Panel............................................................................................................................................1867.2.5 DIP Switches and Jumpers................................................................................................................... 1877.2.6 Valid Slots.............................................................................................................................................1877.2.7 Feature Code.........................................................................................................................................1877.2.8 Technical Specifications....................................................................................................................... 187

8 WDM Board................................................................................................................................1918.1 DMD2............................................................................................................................................................ 191




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9 Auxiliary Boards........................................................................................................................1969.1 AUX............................................................................................................................................................... 196


9.2 FAN................................................................................................................................................................2049.2.1 Version Description.............................................................................................................................. 2049.2.2 Functions and Features......................................................................................................................... 2049.2.3 Working Principle and Signal Flow......................................................................................................2059.2.4 Front Panel............................................................................................................................................2069.2.5 Valid Slots.............................................................................................................................................2079.2.6 Technical Specifications....................................................................................................................... 207

10 Power Boards............................................................................................................................20810.1 UPM.............................................................................................................................................................208

10.1.1 Version Description............................................................................................................................ 20810.1.2 Functions and Features....................................................................................................................... 20810.1.3 Working Principle and Signal Flow....................................................................................................21010.1.4 Front Panel..........................................................................................................................................21010.1.5 Valid Slots...........................................................................................................................................21210.1.6 Technical Specifications..................................................................................................................... 213

10.2 PIU............................................................................................................................................................... 21410.2.1 Version Description............................................................................................................................ 21410.2.2 Functions and Features....................................................................................................................... 21410.2.3 Working Principle and Signal Flow....................................................................................................21510.2.4 Front Panel..........................................................................................................................................21610.2.5 Valid Slots...........................................................................................................................................21710.2.6 Technical Specifications..................................................................................................................... 217

10.3 APIU............................................................................................................................................................ 21710.3.1 Version Description............................................................................................................................ 21810.3.2 Functions and Features....................................................................................................................... 21810.3.3 Working Principle and Signal Flow....................................................................................................21810.3.4 Front Panel..........................................................................................................................................21910.3.5 Valid Slots...........................................................................................................................................22010.3.6 Technical Specifications..................................................................................................................... 220

11 Outdoor Cabinet......................................................................................................................222



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12 Filler Panel................................................................................................................................22512.1 Functions......................................................................................................................................................22512.2 Appearance and Valid Slots......................................................................................................................... 225

13 Optical Attenuators.................................................................................................................22714 Pluggable Optical Modules...................................................................................................229

14.1 Overview......................................................................................................................................................22914.2 SFP/eSFP Optical/Electrical Modules......................................................................................................... 23114.3 XFP Optical Modules...................................................................................................................................23514.4 CWDM/DWDM.......................................................................................................................................... 236

15 Pluggable electrical Modules................................................................................................24916 Cables.........................................................................................................................................251

16.1 Fiber Jumper................................................................................................................................................ 25216.2 DC Power Cable.......................................................................................................................................... 25316.3 AC Power Cable...........................................................................................................................................25416.4 UPM Power Cable....................................................................................................................................... 25416.5 PGND Cable................................................................................................................................................ 25616.6 STM-1 Cable................................................................................................................................................25616.7 16xE1/T1 Cable........................................................................................................................................... 25716.8 21xE1/T1 Cable........................................................................................................................................... 26116.9 E3/T3 Cable................................................................................................................................................. 26616.10 Network Cable........................................................................................................................................... 267

17 Parameter Settings...................................................................................................................271A Glossary......................................................................................................................................272

OptiX OSN 550 Multi-Service CPE OpticalTransmission SystemHardware Description 1 Chassis


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1 ChassisThe OptiX OSN 550 is a 2U chassis. It can be deployed in a variety of scenarios and onseveral different types of cabinets and surfaces.

Chassis Structure



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Chassis Structure and Board Installation Area

Board installation

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)SLOT10

(PIU) SLOT11

(FAN)SLOT92

(PIU)

SLOT 7

SLOT 1 (EXT)

SLOT 5 (EXT)SLOT 3 (EXT)

SLOT 2 (EXT)SLOT 4 (EXT)SLOT 6 (EXT)

SLOT 8SLOT91(PIU) SLOT93

(FAN)

Power supply boardsSystem control, switching, and timing boards

Extended boardsFan board

12

34

1

23

4

W

H

D

An OptiX OSN 550 NE can automatically save its NE ID, extended ID, IP address, and subnet mask toits backplane. After a new system control, switching, and timing board replaces an original one, the NEautomatically uses the saved information. Therefore, you do not need to set the NE ID, extended ID, IPaddress, and subnet mask for the substitute board.

InstallationModeThe equipment can be deployed in a variety of scenarios and on several different types ofcabinets and surfaces. such as in an ETSI or 19-inch cabinet, APM30H outdoor cabinet, oropen rack, or on a wall or desk.

Label DescriptionTable 1-1 provides the description of the labels on the chassis and boards. Actual labels mayvary depending on the configurations of the chassis and boards.



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Table 1-1 Description of labelsLabel Label Name Description

ESD protection label Indicates that the equipment issensitive to static electricity.

Grounding label Indicates the grounding positionof the chassis.

Fan warning label Warns you not to touch fanleaves when the fan is rotating.

Power caution label Instructs you to read relatedinstructions before performingany power-related tasks.

CLASS1LASER

PRODUCT

Laser safety classlabel

The laser safety class labelCLASS 1 indicates that themaximum optical power of theoptical port is less than 10 dBm(10 mW).

/ QUALIFICATION CARD

MADE IN CHINAHUAWEI TECHNOLOGIES CO.,LTD.

HUAWEI

Qualification cardlabel

Indicates that the equipment hasbeen quality checked.

50RoHS label Indicates that the equipment

contains certain hazardoussubstances specified in theRoHS directive. The equipmentneeds to be recycled after theenvironment-friendly use periodof 50 years expires.

DC power

AC power

Product nameplatelabel

Indicates the product name andcertification.



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

Table 1-2 Technical specifications of an OptiX OSN 550 chassisItem PerformanceDimensions (H x W x D) 88 mm x 442 mm x 220 mm (H x W x D)Weight (empty chassis with abackplane)

3.5 kg (net weight of a chassis that contains one fan boardand two PIU boards)

Power consumption Maximum power consumption: 240 W Typical power consumption: 149 W

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


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2 Boards and Their AppearancesAbout This ChapterThis chapter lists the following types of boards that the OptiX OSN 550 supports: systemcontrol, switching, and timing boards, packet processing boards, SDH boards, PDH boards,auxiliary boards, power supply boards, and fan boards. This chapter also provides theappearances of these boards.2.1 Board ListThis section describes the boards that the equipment supports. The equipment providesvarious functions with different boards inserted.2.2 Board AppearanceThis section describes the appearances, dimensions, and bar codes of boards.

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

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

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

SLOT9 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 7 (System control, switching, and timing boards)

Slot 1 (EXT)

Slot 5 (EXT)Slot 3 (EXT)

Slot 2 (EXT)Slot 4 (EXT)Slot 6 (EXT)

Slot 8 (System control, switching, and timing boards)Slot 91

(PIU)Slot 93

(FAN)



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

Table 2-1 Boards that the OptiX OSN 550 supportsBoardClassification

BoardAcronym

Board Name Port Type ValidSlot

Systemcontrol,switching,and timingboard(Hybrid)

TNM1PCXLX The cross-connect,timing, system control,and line board supports: A packet switching

capacity of 60 Gbit/s A higher order

cross-connectcapacity of 20 Gbit/sand a lower ordercross-connectcapacity of 5 Gbit/s

One 10GE and oneSTM-N ports

Systemcommunication andcontrol

One Ethernet NM port/NMserial port (sharing one RJ45port)

One STM-1/STM-4/STM-16small form-factor pluggable(SFP) optical/electrical port.The optical port type can beS-1.1, L-1.1, L-1.2, S-4.1, L-4.1,L-4.2, S-16.1, L-16.1, or L-16.2.STM-1 ports support SFPelectrical modules.

One 10GE XFP optical port:10GBASE-SR (LAN),10GBASE-SW (WAN),10GBASE-LR (LAN),10GBASE-LW (WAN),10GBASE-ER (LAN),10GBASE-EW (WAN),10GBASE-ZR (LAN), or10GBASE-ZW (WAN)

Slots 7 and8

TNM1PCXX The cross-connect,timing, system control,and line board supports: A packet switching



One 10GE port System

communication andcontrol



Slots 7 and8

TNM1PCXLG The cross-connect,timing, system control,and line board supports: A packet switching



One STM-1/STM-4/STM-16small form-factor pluggable(SFP) optical/electrical port.

Slots 7 and8



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BoardClassification

BoardAcronym



One GE and oneSTM-N ports


The optical port type can beS-1.1, L-1.1, L-1.2, S-4.1, L-4.1,L-4.2, S-16.1, L-16.1, or L-16.2.STM-1 ports support SFPelectrical modules.

One GE SFP optical port:1000BASE-SX/1000BASE-LX/1000BASE-VX/1000BASE-ZX

TNM1PCXGA The cross-connect,timing, system control,and line board supports: A packet switching



One GE port System




Slots 7 and8

TNM1PCXGB The cross-connect,timing, system control,and line board supports: A packet switching



One GE port System




Slots 7 and8

Systemcontrol,switching,and timingboard

TNM1CXL1 The cross-connect,timing, system control,and line board supports: A higher order

cross-connect


One STM-1 SFPoptical/electrical port. The

Slots 7 and8



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BoardClassification

BoardAcronym


(TDM) capacity of 20 Gbit/sand a lower ordercross-connectcapacity of 5 Gbit/s


optical port type can be S-1.1,L-1.1, or L-1.2. STM-1 portssupport SFP electrical modules.

TNM1CXL4 One Ethernet NM port/NMserial port (sharing one RJ45port)

One STM-4 SFP optical port ofthe S-4.1, L-4.1, or L-4.2 type

Slots 7 and8

TNM1CXL16 One Ethernet NM port/NMserial port (sharing one RJ45port)

One STM-16 SFP optical port ofthe S-16.1, L-16.1, or L-16.2type

Slots 7 and8

Packetprocessingboard

TNM1MD1 32xsmart E1 serviceprocessing board

75/120-ohm E1 port Slots 1 to6

TNM1EM6T 6xRJ45 FE/GEprocessing board

Four FE electrical ports:10/100BASE-T(X)

Two GE electrical ports (theycan serve as FE electrical ports):1000BASE-T

Slots 1 to6

TNM1EM6F 4xRJ45 and 2xSFPFE/GE processing board

Four FE electrical ports:10/100BASE-T(X)

Two GE/FE SFPoptical/electrical ports:1000BASE-SX/1000BASE-LX/1000BASE-VX/1000BASE-ZX/1000Base-T/100BASE-BX/100BASE-FX/100BASE-LX/100BASE-VX/100BASE-ZX

Slots 1 to6

TNM1EG4C 4xGE (SFP/RJ45)processing board

Four GE electrical ports:1000BASE-T

Four GE/FE SFP optical ports:1000BASE-SX/1000BASE-LX/1000BASE-VX/1000BASE-ZX/100BASE-BX/100BASE-FX/100BASE-LX/100BASE-VX/100BASE-ZX

Slots 3 to6

TNM1EF8F 8xFE processing board Eight FE SFP optical/electricalports:100BASE-BX/100BASE-FX/100BASE-LX/100BASE-VX/100BASE-ZX/100BASE-T

Slots 1 to6



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BoardClassification

BoardAcronym


TNM1EX1 1x10GE processingboard


Slots 1 and2 (An EX1boardcannotwork witha PCXGAboard.)

TNM1CQ1 4-port channelizedSTM-1 serviceprocessing board

Four STM-1 SFPoptical/electrical ports of theS-1.1, L-1.1, or L-1.2 opticaltype or of SFP electricalmodules

Slots 1 to6

SDH board TNH2SL1D 2xSTM-1 interface board Two STM-1 SFP optical/electricalports. The optical port type can beS-1.1, L-1.1, or L-1.2. STM-1 portssupport SFP electrical modules.

Slots 1 to6

TNH2SL1Q 4xSTM-1 interface board Four STM-1 SFP optical/electricalports. The optical port type can beS-1.1, L-1.1, or L-1.2. STM-1 portssupport SFP electrical modules.

Slots 1 to6

TNH2SL4D 2xSTM-4 interface board Two STM-4 SFP optical ports ofthe S-4.1, L-4.1, or L-4.2 type

Slots 1 to6

PDH board TNH2SP3D 42xE1/T1 tributary board Forty-two 75/120-ohm E1 ports orforty-two 100-ohm T1 ports

Slots 1 to6

TNH2PL3T 3xE3/T3 tributary board Three 75-ohm E3/T3 ports Slots 1 to6

EoS board TNH2EFS8 8xFE switching andprocessing board

Eight FE electrical ports:10/100BASE-T(X)

Slots 1 to6

TNH2EGT1 1xGE transparenttransmission board

One GE SFP optical/electrical port:1000BASE-SX/1000BASE-LX/1000BASE-VX/1000BASE-ZX/1000Base-T

Slots 1 to6

WDMboard

TNM1DMD2 2-port optical add/dropmultiplexing board

wIN/wOUT wA1/wA2 wD1/wD2 eIN/eOUT eA1/eA2 eD1/eD2

slot 1 to 6

Auxiliaryinterface

TNM1AUX Auxiliary interface board One orderwire phone port Slots 1 to6



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BoardClassification

BoardAcronym


board One asynchronous data port One synchronous data port 6-input/2-output alarm port One 2-channel external clock

port Two 2-channel external time

portsPowersupplyboard

UPM Uninterruptible powermodule

One 110 V/220 V AC powerinput port

Two -48 V DC power outputports

Slot 97

TND1PIU Power supply board One -48 V/-60 V DC power inputport

Slots 91and 92

TNF1APIU Power supply board Two 110 V/220 V AC power inputports

Slots 4and 6(recommended)

Slots 2and 4

Fan board TNM1FAN Fan board N/A Slot 93

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

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

Table 2-2 Appearances and dimensions of the boards that the OptiX OSN 550 supportsBoardType

BoardName

Appearance Dimensions (H xW x D)

Systemcontrol,switching,and timingboard

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



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BoardType

BoardName


Packetprocessingboard

MD1/EM6T/EM6F/EG4C/EF8F/EX1/CQ1

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

SDHboard

SL1D/SL4D/SL1Q

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

PDHboard

SP3D/PL3T

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

EoS board EFS8/EGT1

For example, EFS8: 19.82 mm x 193.80mm x 225.80 mm

WDMboard

DMD2 19.82 mm x 193.80mm x 225.80 mm

Auxiliaryboard

AUX 19.82 mm x 193.80mm x 225.80 mm



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BoardType

BoardName


Powersupplyboard

UPM

GIE4805S

44.0 mm x 438.0mm x 240.0 mm

PIU 41.4 mm x 21.0mm x 229.9 mm

APIU 40.1 mm x 193.8mm x 208.7 mm

Fan board FAN 86.2 mm x 28.5mm x 217.6 mm

Note: The figure in the right cell shows the three dimensions. "H" and "W" indicate theheight and width of the front panel respectively and "D" indicates the depth of the printedcircuit board (PCB).

W

H

D

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



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Figure 2-2 Bar codeBar code

2 Internal code34

Board versionBoard nameFeature code

1

5

Last six digits of the part number

020XES10AA800077-TNM1MD1 A1 2 3 4 5

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

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


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3 System Control, Switching, and TimingBoards

About This ChapterThe OptiX OSN 550 uses the system control, switching, and timing board PCX.3.1 PCXThe PCX is a system control, cross-connect, timing, and line board that works in Hybridmode. It is available in five types of finished boards.3.2 CXLThe CXL is a system control, cross-connect, timing, and line board that works in TDM mode.

3.1 PCXThe PCX is a system control, cross-connect, timing, and line board that works in Hybridmode. It is available in five types of finished boards.

3.1.1 Version DescriptionThe functional version of the PCX is TNM1. PCX boards are available in five types offinished boards: PCXLX, PCXX, PCXLG, PCXGA, and PCXGB.Table 3-1 lists the differences between the five types of PCX finished boards.

Table 3-1 Differences between the five types of PCX finished boardsFinishedBoard

PacketSwitchingCapability

TDM Cross-ConnectCapability

TDM Service Port Packet Service Port

PCXLX 60 Gbit/s A higher ordercross-connect capacityof 20 Gbit/s and a lowerorder cross-connectcapacity of 5 Gbit/s

OneSTM-1/STM-4/STM-16small form-factorpluggable (SFP)optical/electrical port.The optical port type can

One 10GE XFP opticalport: 10GBASE-SR(LAN), 10GBASE-SW(WAN), 10GBASE-LR(LAN), 10GBASE-LW(WAN), 10GBASE-ER



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FinishedBoard

PacketSwitchingCapability

TDM Cross-ConnectCapability

TDM Service Port Packet Service Port

be S-1.1, L-1.1, L-1.2,S-4.1, L-4.1, L-4.2,S-16.1, L-16.1, or L-16.2.STM-1 ports support SFPelectrical modules.

(LAN), 10GBASE-EW(WAN), 10GBASE-ZR(LAN), or10GBASE-ZW (WAN)

PCXX 60 Gbit/s None One 10GE XFP opticalport: 10GBASE-SR(LAN), 10GBASE-SW(WAN), 10GBASE-LR(LAN), 10GBASE-LW(WAN), 10GBASE-ER(LAN), 10GBASE-EW(WAN), 10GBASE-ZR(LAN), or10GBASE-ZW (WAN)

PCXLG 40 Gbit/s OneSTM-1/STM-4/STM-16small form-factorpluggable (SFP)optical/electrical port.The optical port type canbe S-1.1, L-1.1, L-1.2,S-4.1, L-4.1, L-4.2,S-16.1, L-16.1, or L-16.2.STM-1 ports support SFPelectrical modules.

One GE SFP opticalport:1000BASE-SX/1000BASE-LX/1000BASE-VX/1000BASE-ZX

PCXGA 20 Gbit/s None One GE SFP opticalport:1000BASE-SX/1000BASE-LX/1000BASE-VX/1000BASE-ZX

PCXGB 40 Gbit/s None One GE SFP opticalport:1000BASE-SX/1000BASE-LX/1000BASE-VX/1000BASE-ZX

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

System Control, Switching, and Timing UnitTable 3-2 lists the functions and features that the system control, switching, and timing unit ofthe PCX supports.



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Table 3-2 Functions and features that the system control, switching, and timing unit of the PCXsupportsFunction and Feature BoardBasicfunctions

Packetswitchingcapability

The PCXLX/PCXX supports 60 Gbit/s packet switchingfunction.

The PCXLG/PCXGB supports 40 Gbit/s packet switchingfunction.

The PCXGA supports 20 Gbit/s packet switchingfunction.

Time divisionmultiplexing(TDM)cross-connectcapacity

A higher order cross-connect capacity of 20 Gbit/s and alower order cross-connect capacity of 5 Gbit/s

System control andcommunication

Manages and controls the running status of an NE. Works as a communication service unit between the

network management system (NMS) and NEs to help theNMS to control and manage the NE.

Packet systemperformance

See Table 3-4.

Multiprotocol LabelSwitching (MPLS)functions

The packet switching unit of the PCX works with its serviceinterface unit or a service board to implement MPLSfunctions. Setup mode: static tunnels Protection: 1:1 tunnel automatic protection switching

(APS) Operation, administration and maintenance (OAM):

supports MPLS tunnel OAM and multiprotocol labelswitching transfer profile (MPLS-TP) tunnel OAM.MPLS tunnel OAM complies with ITU-T Y.1711, andMPLS-TP tunnel OAM complies with ITU-T G.8113.1.

Pseudo wire emulationedge-to-edge (PWE3)functions

The packet switching unit of the PCX works with its serviceinterface unit or a service board to implement PWE3functions. Service categories

TDM PWE3 services (circuit emulation services[CESs])

Asynchronous transfer mode (ATM) PWE3 services ETH PWE3 services

Setup mode: static pseudo wires (PWs) Supports single-segment PWs (SS-PWs) and

multi-segment PWs (MS-PWs). PW encapsulation mode: raw mode or tagged mode PW control word: supported by the

PCXLG/PCXGA/PCXGB board whose printed circuit



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Function and Feature Boardboard (PCB) version is Ver.B and the PCXLX/PCXXboard.

Protection: 1:1 PW APS OAM: supports MPLS PW OAM and MPLS-TP PW

OAM. MPLS PW OAM complies with ITU-T Y.1711,and MPLS-TP PW OAM complies with ITU-T G.8113.1.

Equipment-levelprotection

1+1 hot standby

Synchronization

Clock/Timesource

The traced clock source at the physical layer can be any of thefollowing: External clock Synchronous digital hierarchy (SDH) line clock Plesiochronous digital hierarchy (PDH) tributary clock Synchronous Ethernet clock Internal clock sourceThe traced packet clock/time source can be any of thefollowing: External time IEEE 1588v2 clock and time IEEE 1588 adaptive clock recovery (ACR) clock

Clock protocol Standard Synchronization Status Message (SSM) protocol Extended SSM protocol Best master clock (BMC) protocol

Datacommunicationnetwork(DCN)

Outband DCN Mode 1: 32 data communications channels (DCCs) thatare composed of D1-D3 bytes

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

Inband DCN Supports the inband DCN function. The DCN bandwidthis configurable.

Networkmanagementprotocol

HuaweiEmbeddedControlChannel(HWECC)protocol

Supported by outband and inband DCNs

IP Supported by outband and inband DCNsOpen systemsinterconnection (OSI) overDCC protocol

Supported only by outband DCNs

SimpleNetwork

Supported



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Function and Feature BoardManagementProtocol(SNMP)

Auxiliary andmanagement ports

Provides one 10M/100M Ethernet NMS port or NMS serialport.

Packet Processing Unit and SDH Line UnitTable 3-2 lists the functions and features that the packet processing unit and SDH line unit ofthe PCX support. The packet processing unit includes logical units PEX1 and PEG1, and theSDH line unit includes logical units SL16S, SL4S, and SL1S. For the mapping between thelogical units and logical slots, see 3.1.6 Valid Slots.

Table 3-3 Functions and features that the packet processing unit and SDH line unit of the PCXsupportFunction and Feature BoardBasic functions PCXLX: receives/transmits and processes 1x10GE signals

and 1xSTM-1/STM-4/STM-16 signals. PCXX: receives/transmits and processes 1x10GE signals. PCXLG: receives/transmits and processes 1xGE signals

and 1xSTM-1/STM-4/STM-16 signals. PCXGA/PCXGB: receives/transmits and processes 1xGE

signals.Portspecifications

TDM serviceport

PCXLX/PCXLG: One STM-1/STM-4/STM-16 smallform-factor pluggable (SFP) optical/electrical port. Theoptical port type can be S-1.1, L-1.1, L-1.2, S-4.1, L-4.1,L-4.2, S-16.1, L-16.1, or L-16.2. STM-1 ports supportSFP electrical modules.

PCXX/PCXGB/PCXGA: none An optical port can be a colored coarse wavelength

division multiplexing (CWDM) optical port or a coloreddense wavelength division multiplexing (DWDM) opticalport. A colored CWDM optical port supports atransmission distance of 40 km or 80 km. A coloredDWDM optical port supports a transmission distance of120 km.

The following types of small form-factor pluggable (SFP)modules are supported: STM-1/STM-4/STM-16 two-fiber bidirectional

pluggable optical module STM-1/STM-4 single-fiber bidirectional pluggable

optical module STM-1 pluggable electrical module

NOTE



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Function and Feature BoardOnly an STM-16 optical port can be a colored DWDM optical port.

Packet serviceport

PCXLX/PCXX: One 10GE XFP optical port:10GBASE-SR (LAN), 10GBASE-SW (WAN),10GBASE-LR (LAN), 10GBASE-LW (WAN),10GBASE-ER (LAN), 10GBASE-EW (WAN),10GBASE-ZR (LAN), or 10GBASE-ZW (WAN)

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

A 10GE optical port can be a colored CWDM optical portor a colored DWDM optical port. A colored CWDMoptical port supports a transmission distance of 70 km. Acolored DWDM optical port supports a transmissiondistance of 40 km or 80 km.

A GE optical port can be a colored CWDM optical port. Acolored CWDM optical port supports a transmissiondistance of 40 km or 80 km.

The following types of SFP modules are supported: GE two-fiber bidirectional pluggable optical module GE single-fiber bidirectional pluggable optical module

The XFP module supported is a 10GE two-fiberbidirectional pluggable optical module.

Portattributes

Working mode The GE optical port supports 1000M full-duplex andauto-negotiation.

The 10GE optical port supports 10G full-duplex and thesetting of LAN mode or WAN mode.

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

Traffic controlat ports

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

Port typequery

Supported

Query andsetting ofoptical powerthresholds

Supported

Packetservices

E-Lineservices

Native ETH services: E-Line services based on point-to-point transparent

transmission E-Line services based on virtual local area networks

(VLANs) E-Line services based on 802.1Q in 802.1Q (QinQ)

ETH pseudo wire emulation edge-to-edge (PWE3)services: E-Line services carried by PWs (VPWS



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Function and Feature Boardservices)

E-LANservices

Native ETH services: E-LAN services based on IEEE 802.1d bridges E-LAN services based on IEEE 802.1q bridges E-LAN services based on IEEE 802.1ad bridges

ETH PWE3 services: E-LAN services carried by PWs(virtual private LAN services [VPLSs])

MAC address learning modes: Independent VLAN learning (IVL) and shared VLAN

learning (SVL) for native Ethernet services SVL for VPLS services

Ethernet dataframe format

IEEE 802.3/Ethernet II

Jumbo frame Supports a jumbo frame with a maximum length of 9600bytes.

MTU Ranges from 960 bytes to 9600 bytes, with 1620 bytes beingthe default value.

SDH service functions (forPCXLX/PCXLG boards)

Processes VC-12/VC-3/VC-4 services, VC-4-4c services(supported by STM-4/STM-16 service ports), and VC-4-16cservices (supported by STM-16 service ports).

Packetprotectionschemes

Tunnel APS Supports 1:1 tunnel APS.PW APS Supports 1:1 PW APS.MPLS-TP ringprotectionswitching(MRPS)

Does not support MRPS.

MSTP Supports MSTP that runs only Common and InternalSpanning Tree (CIST) instances. This type of MSTP providesthe same functions as the Rapid Spanning Tree Protocol(RSTP).

ERPS Supports ERPS that complies with ITU-T G.8032/Y.1344.LAG Aggregation types: manual aggregation and static

aggregation Load sharing modes: load sharing and non-load sharing

LPT Point-point and point-multipoint LPT.TDMprotectionschemes(forPCXLX/

Sub-networkconnectionprotection(SNCP)

Supports SNCP at the VC-12/VC-3/VC-4 levels.

Ring multiplex Supports ring MSP at the STM-1/STM-4/STM-16 levels.



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Function and Feature BoardPCXLGboards)

sectionprotection(MSP)Linear MSP Supports linear MSP at the STM-1/STM-4/STM-16 levels.

Quality of service (QoS)functions

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

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

Complex traffic classificationSupports complex traffic classification based on C-VLANIDs, S-VLAN IDs, C-VLAN priorities, S-VLANpriorities, C-VLAN IDs + C-VLAN priorities, S-VLANIDs + S-VLAN priorities, or DSCP values carried bypackets, and V-UNI ingress policies.

QoS policiesSupports port policies and V-UNI ingress policies.

Access control list (ACL) policyPasses or discards packets in a flow that matches rulesspecified by a port policy or V-UNI ingress policy.

CARProvides the CAR function for traffic flows at ports andV-UNI ingresses.

ShapingProvides traffic shaping for a specific port, PW ingress,prioritized queue, or traffic flow.

Congestion managementSupports tail drop and WRED dropping.

Queue scheduling policiesSupports SP, WRR, and SP+WRR.

Maintenancefeatures

MPLS/MPLS-TP OAM

Tunnel OAM and PW OAM are supported. MPLS OAM supports connectivity verification (CV), fast

failure detection (FFD), backward defect indication (BDI),forward defect indication (FDI), ping, and traceroute testsin compliance with ITU-T Y.1711.

MPLS-TP OAM supports continuity checks (CCs), remotedefect indication (RDI), alarm indication signal (AIS)insertion, loopback (LB) tests, linktrace (LT) tests, PWloss measurement (LM), locked signal function (LCK),test (TST) (only packet loss test supported), PW ClientSignal Fail (CSF) indication, and two-way delaymeasurement (DM) in compliance with ITU-T G.8113.1.



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Function and Feature BoardETH OAM Ethernet service OAM:

Supports CCs, LB tests, LT tests, and AIS insertion incompliance with IEEE 802.1ag.

Implements IEEE 802.1ag-based LM and DM withreference to ITU-T Y.7131.

Ethernet port OAM: supports OAM auto-discovery, linkperformance monitoring, remote loopbacks, and selfloopchecks in compliance with IEEE 802.3ah.

Warm reset and cold resetBoard power consumption queryBoard temperature detectionBoard voltage detectionPort mirroring Supports local port mirroring.

Supports mirroring in the egress direction of a UNI port. Supports mirroring in the ingress direction of UNI and

NNI ports. Supports mirroring of PORT+VLAN services in the

ingress direction of a UNI port.Synchronization

SDH clocksource

Transmits SDH line clock signals at one port.

SynchronousEthernet

Transmits synchronous Ethernet clock signals at one port.

IEEE 1588v2 Transmits IEEE 1588v2 time and clock signals at one port.IEEE 1588ACR

Transmits 1588 ACR clock signals at one port.NOTE

Ports working in 10GE WAN mode do not support IEEE 1588v2 orIEEE 1588 ACR.

DCN Each TDM port supports one embedded control channel(ECC).

Each GE/10GE port supports one inband DCN channel.Internet GroupManagement Protocol(IGMP) snooping

Supported

For the packet processing unit, the SDH line unit, and the logical unit that consists of the system controland communication unit, cross-connect unit, and clock unit on a PCX board, switching of servicescarried on any of the three units does not cause switching of services carried on the other two units.



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Packet System Performance SpecificationsTable 3-4 lists the packet system performance specifications of the OptiX OSN equipment.

Table 3-4 Packet system performance specificationsItem

Specifications

Protection

MPLS/MPLS-TPtunnelautomaticprotectionswitching(APS)

64NOTE

MPLS tunnel APS, MPLS PW APS, MPLS-TP tunnel APS, and MPLS-TP PWAPS share resources.

MPLS/MPLS-TP PWAPS

Number of MPLS/MPLS-TP PWAPS protection groups

64NOTE

MPLS tunnel APS, MPLS PW APS,MPLS-TP tunnel APS, and MPLS-TPPW APS share resources.

Number of bound members 512Link-statepassthrough(LPT)

16

Linkaggregation group(LAG)

Number of LAGs 16Number of members in a LAG 8

MultipleSpanningTreeProtocol(MSTP)

Number of instances supported bya port

1

Number of port groups 1Number of ports provided by portgroups

16

Ethernetringprotectionswitching(ERPS)

8

Linearmultiplexsectionprotection(LMSP)on thepacket

8



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Item

Specifications

planeMaintenance

MPLS/MPLS-TPtunnelOAM

128NOTE

MPLS tunnel OAM, MPLS PW OAM, MPLS-TP tunnel OAM, MPLS-TP PWOAM, and ETH OAM share resources.

MPLS/MPLS-TP PWOAM

128NOTE

MPLS tunnel OAM, MPLS PW OAM, MPLS-TP tunnel OAM, MPLS-TP PWOAM, and ETH OAM share resources.

ETHOAM(MPLS/MPLS-TPtunnelOAM,MPLS/MPLS-TP PWOAM, andETHOAMshareresources.)

Number of maintenance domains (MDs) 64Number of maintenance associations (MAs) 64Number of maintenance association endpoints (MEPs)

64

Number of maintenance associationintermediate points (MIPs)

64

ATMOAM

Number of local services: 128 Number of remote services: 256

Services

E-Lineservices

1KNOTE

Native ETH services and PWE3 ETH services (VPWSs) share resources.

E-LANservices

Number of E-LAN services (E-LAN VSIs)supported by an NE (VSI is short for virtualswitch instance.)

Native ETHservices: 1

PWE3 ETH services(VPLSs): 128

NOTENative ETH services andPWE3 ETH services(VPLSs) cannot coexiston the same NE.

Number of logical ports supported by a VSI Native ETHservices: 1K


Number of virtual user-network interfaces(V-UNIs) supported by an NE (VPLS)

NumberofV-UNIs

Number ofVLANs



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Item

Specifications

32 409664 2047128 1023256 511512 2551024 127

Number of split horizon groups supported bya VSI

Native ETHservices: 1


Number of logical ports supported by an NE 1KCESservices

256

ATMservices

Number of local services 128Number of remote services 256

Multi-LinkPoint-to-PointProtocol(ML-PPP)

Number ofML-PPPgroupssupportedby an NE

64

Number ofPPP linkssupportedby an NE

504

Number ofmemberlinkssupportedin anML-PPPgroup

16

IGMPsnoopi

Number ofmulticastgroups

512

Number ofmembers

1K



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Item

Specifications

ng in amulticastgroup

QoS

Number ofportweightedrandomearlydiscard(WRED)policies

8

Number ofvirtualuser-networkinterface(V-UNI)ingresspolicies

256

Number ofportpolicies

256

Number ofDifferentiatedServices(DiffServ)domains

8

Number ofport flows

512

Number ofV-UNIingressflows

512

Number oftrafficclassification rules

1

Number ofaccesscontrollists(ACLs)

512

Othe

Number ofMPLS

Unidirectional: 1K



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Item

Specifications

rs tunnels Bidirectional: 512NOTE One bidirectional MPLS tunnel is counted as two unidirectional MPLS tunnels. If MPLS tunnels do not carry PWs, the sum of PWs and MPLS tunnels must

not exceed 1K. If MPLS tunnels carry PWs, the MPLS tunnels are not countedand the number of carried PWs must not exceed 1K. Therefore, if each MPLStunnel carries one PW, the number of MPLS tunnels and the number of PWscan both be 1K.

Tunnelbandwidth

10 Gbit/s

Number ofstatic PWs

1KNOTE

If MPLS tunnels do not carry PWs, the sum of PWs and MPLS tunnels must notexceed 1K. If MPLS tunnels carry PWs, the MPLS tunnels are not counted andthe number of carried PWs must not exceed 1K. Therefore, if each MPLS tunnelcarries one PW, the number of MPLS tunnels and the number of PWs can both be1K.

PWbandwidth

10 Gbit/s

Number ofMS-PWs

128

Number ofQinQ links

1K

MACaddresses

Number of static MACaddresses supported by anE-LAN

512

Number of MAC addressessupported by E-LAN services

16K

Number of MAC addressessupported by an NE

16K

VLAN IDrangesupportedby a port

1 to 4094

The values listed in the preceding table are the maximum values supported by the OSN equipment.The packet performance counters supported by the packet processing boards (including PEX1 and PEG1)are the same those supported by the OSN equipment.



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3.1.3 Working Principle and Signal FlowThe PCX consists of a system control and communication unit, a packet switching unit, apacket processing unit, a TDM cross-connect unit, a SDH line unit, a clock unit, and a powersupply unit.

Function Block DiagramFigure 3-2 Function block diagram of the PCX

Backplane

Power supply

unit

Clock unit

Control bus

Packet switching unit

Packet processing unit

Packet service

GE/10GE signal

GE/10GE signal

TDM cross-connect unit

TDM serviceService boardSTM-1/4/16 signal SDH line unit

Ethernet NM portNM serial port System control and communication unit

+3.3 V power supplied to other boards+12 V power supplied to fans

Power supplied to the other units on the board

Clock signal provided to the other units on the board

Clock signal received from

the service unit on the board

Clock signal received from other boardsClock signal provided to other boards

Service board

System power supply -48 V/-60 V

-48 V/-60 V

Fuse

System power supply

System Control and Communication UnitThe 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 controlunit.

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.



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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

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

Packet Switching UnitThe packet switching unit grooms services and processes protocols for packet services. After receiving services from a packet service board, the packet switching unit grooms

the services based on the configurations delivered by the system control andcommunication unit.

After receiving protocol packets from a packet service board, the packet switching unittransmits the protocol packets to the system control and communication unit forprocessing. After processing, the system control and communication unit sends theprotocol packets back to the packet switching unit. The packet switching unit transmitsthe protocol packets to the packet service board.

TDM Cross-Connect UnitThe TDM cross-connect unit grooms TDM services over the entire system using the higherorder cross-connect module and the lower order cross-connect module. Figure 3-2 shows thefunction block diagram of the cross-connect unit.

Figure 3-3 Function block diagram of the cross-connect unit

Source TDM service unit

Higher order cross-

connect moduleHOXC

Lower order cross-

connect moduleLOXC

Sink TDM service unit

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



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cross-connect module grooms the VC-12 or VC-3 services to the lower order cross-connectmodule. The lower order cross-connect module processes the VC-12 or VC-3 services andthen transmits the services back to the higher order cross-connect module. The higher ordercross-connect module processes the services and then transmits the services to the sink TDMservice unit.

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-lockedloop, the clock unit provides the system clock to other units on the PCX and otherboards.

The clock unit receives IEEE 1588v2 messages and IEEE 1588 ACR messages from theGE/10GE signal access unit, and performs protocol processing to achieve clock/timesynchronization.

The clock unit supports synchronous Ethernet clock. The clock units on the active and standby PCX boards transmit clock signals to each

other.

Packet Processing UnitThe packet processing unit receives/transmits and processes 1xGE/10GE optical signals. In the receive direction:

After performing optical-to-electrical (O/E) conversion, decoding, and serial/parallel conversion forGE/10GE optical signals, the GE/10GE signal processing unit extracts framed GE/10GE signals bydelimiting frames and adding preambles. The GE/10GE signal processing unit also performs cyclicredundancy checks (CRCs).

The GE/10GE signal processing unit works with the packet switching unit to process VLAN tags inEthernet data frames, process labels in Multiprotocol Label Switching (MPLS) or pseudo wire emulationedge-to-edge (PWE3) packets, perform quality of service (QoS) processing such as traffic classification andcommitted access rate (CAR) restriction for Ethernet data frames, and process operation, administrationand maintenance (OAM) packets and protocol packets.

In the transmit direction: The GE/10GE signal processing unit works with the packet switching unit to process VLAN tags in

Ethernet data frames, process labels in MPLS or PWE3 packets, perform QoS processing such as trafficshaping and queue scheduling for Ethernet data frames, and process OAM packets and protocol packets.

After delimiting frames, adding preambles, and calculating CRC codes, the GE/10GE signal processingunit performs parallel/serial conversion and encoding and then transmits GE/10GE signals to the GE/10GEoptical port after performing electrical-to-optical (E/O) conversion.

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

Power Supply UnitThe power supply unit performs the following functions: Combines two -48 V/-60 V DC power supplies, and converts the supplied power into the

power supply required by the chips of the other units on the local board.



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Combines two -48 V/-60 V power supplies, and converts the supplied power into the+3.3 V power supply required by other boards.

Combines two -48 V/-60 V DC power supplies, and converts the supplied power into the+12 V power supply required by fans.

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

Front Panel DiagramTable 3-5 shows the front panel of each PCX finished board.

Table 3-5 Front panel of each PCX finished boardFinishedBoard

optix osn 550 hardware description(v100r006)

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