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OptiX RTN 600 Radio Transmission System

V100R002

Product Description

Issue 03

Date 2008-08-30

Part Number 00425655

Huawei Proprietary and ConfidentialCopyright Huawei Technologies Co., Ltd.


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Huawei Technologies Co., Ltd. provides customers with comprehensive technical support and service. For anyassistance, please contact our local office or company headquarters.

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

Bantian, LonggangShenzhen 518129People's Republic of China

Website: http://www.huawei.com

Email: [email protected]

Copyright Huawei Technologies Co., Ltd. 2008. All rights reserved.

No part of this document may be reproduced or transmitted in any form or by any means without prior writtenconsent of Huawei Technologies Co., Ltd. Trademarks and Permissions

and other Huawei trademarks are the property of Huawei Technologies Co., Ltd.All other trademarks and trade names mentioned in this document are the property of their respective holders. Notice

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 the statements, information, andrecommendations in this document do not constitute a warranty of any kind, express or implied.

Huawei Proprietary and ConfidentialCopyright Huawei Technologies Co., Ltd.
mailto:[email protected]://www.huawei.com/


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Contents

About This Doc ument.....................................................................................................................1

1 Product Introduction.................................................................................................................1-11.1 Network Application.......................................................................................................................................1-2

1.2 Co mponents.....................................................................................................................................................1-32 IDU 605.........................................................................................................................................2-1

2.1 Features...........................................................................................................................................................2-2

2.2 System Architecture........................................................................................................................................2-4

2.3 Logic Board Configuration.............................................................................................................................2-5

2.4 Sig nal Processing Flow...................................................................................................................................2-7

3 IDU 610 and IDU 620.................................................................................................................3-13.1 Features... ........................................................................................................................................................3-2

3.2 Sy stem Architecture........................................................................................................................................3-7

3.3 Board Configuration........................................................................................................................................3-93.4 Signal Pro cessing Flow.................................................................................................................................3-12

4 ODU..............................................................................................................................................4-14.1 Features... ........................................................................................................................................................4-2

4.2 Sy stem Architecture........................................................................................................................................4-3

5 Equipment Software..................................................................................................................5-15.1 Software Architecture.....................................................................................................................................5-2

5.2 NMS Soft ware.................................................................................................................................................5-2

5.3 NE Software....................................................................................................................................................5-2

5.4 Board Software................................................................................................................................................5-2

6 Networking..................................................................................................................................6-16.1 IDU 605 Networking.......................................................................................................................................6-2

6.1 .1 Point-to-Point Networking.....................................................................................................................6-2

6.1.2 Terminal Stations in a Radio Transmission Network............................................................................6-2

6.2 ID U 610 Networking.......................................................................................................................................6-3

6.3 IDU 620 Networking.......................................................................................................................................6-3

6.3.1 Chain Networking..................................................................................................................................6-3

6.3.2 Tree Networking....................................................................................................................................6-4

6.3.3 Fiber Ring Networking...........................................................................................................................6-4

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6.3.4 Microwave Ring Networking.................................................................................................................6-5

6.3.5 Hybrid Networking................................................................................................................................6-6

7 Network Management System................................................................................................7-1

7.1 Network Management Solution......................................................................................................................7-27.2 Web LCT.........................................................................................................................................................7-2

7.2.1 Functionality...........................................................................................................................................7-3

7.2.2 Networking.............................................................................................................................................7-4

7.3 T2000..............................................................................................................................................................7-5

7.3.1 Functionality...........................................................................................................................................7-5

7.3.2 Networking.............................................................................................................................................7-6

7.4 T2 100..............................................................................................................................................................7-7

8 Perform ance.................................................................................................................................8-1

8.1 Radio Performance..........................................................................................................................................8-28.2 Eq uipment Reliability...................................................................................................................................8-13

8.3 Interface P erformance...................................................................................................................................8-14

8.4 Jitter Perf ormance.........................................................................................................................................8-20

8.5 Clock Tim ing and Synchronization Performance.........................................................................................8-20

8.6 Integrated System Performance....................................................................................................................8-20

A Frequency In formation...........................................................................................................A-1A.1 SP ODUs.......................................................................................................................................................A-1

A.2 SP A ODUs.....................................................................................................................................................A-6

A.3 HP ODU s.....................................................................................................................................................A-11A.4 LP ODUs .....................................................................................................................................................A-18

A.5 LPA OD Us..................................................................................................................................................A-22

B Compliance Standards.............................................................................................................B-1B.1 ITU-R Standards............................................................................................................................................B-1

B.2 ET SI Standards..............................................................................................................................................B-2

B.3 ITU-T Sta ndards............................................................................................................................................B-3

B.4 IETF Stan dards..............................................................................................................................................B-5

B.5 IEEE Sta ndards..............................................................................................................................................B-6

B.6 Environm ental Standards...............................................................................................................................B-6

C Glossary......... .............................................................................................................................C-1

D Acrony ms and Abbreviations...............................................................................................D-1

Index.................. ...............................................................................................................................i-1

ContentsOptiX RTN 600 Radio Transmission System

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Figures

Figure 1-1 Radio transmission network composed of the OptiX RTN 600.........................................................1-2

Figure 1-2 Hybrid transmission network composed of the OptiX RTN 600 and OptiX series optical transmission products......... ........................................................................................................................................................1-3

Figure 1-3 IDU 605 (IDU 605 2B, 48 V/60 V input).......................................................................................1-4

Figure 1-4 IDU 610..............................................................................................................................................1-4Figure 1-5 IDU 620..............................................................................................................................................1-4

Figure 1-6 One ODU configured for one antenna................................................................................................1-6

Figure 1-7 Two ODUs configured for one antenna..............................................................................................1-6

Figure 2-1 System architecture of the IDU 605...................................................................................................2-4

Figure 2-2 IDU 605 logic board configuration....................................................................................................2-6

Figure 2-3 Signal processing flow........................................................................................................................2-7

Figure 3-1 System architecture of the IDU 610 or IDU 620................................................................................3-8

Figure 3-2 IDU 610 configuration........................................................................................................................3-9

Figure 3-3 IDU 620 configuration........................................................................................................................3-9Figure 3-4 Signal processing flow......................................................................................................................3-12

Figure 4-1 Block diagram of the ODU.................................................................................................................4-3

Figure 5-1 Software architecture of the OptiX RTN 600.....................................................................................5-2

Figure 6-1 Point-to-point networking...................................................................................................................6-2

Figure 6-2 Te rminal stations in a radio transmission network.............................................................................6-2

Figure 6-3 Chain networking (without protection)..............................................................................................6-3

Figure 6-4 Chain networking (with protection)...................................................................................................6-3

Figure 6-5 Tr ee networking..................................................................................................................................6-4

Figure 6-6 Fi ber ring networking (microwave services directly accessed)..........................................................6-5

Figure 6-7 Fi ber ring networking (microwave services indirectly accessed).......................................................6-5

Figure 6-8 Microwave ring networking...............................................................................................................6-6

Figure 6-9 Hybrid networking..............................................................................................................................6-6

Figure 7-1 NM solution of a transport network...................................................................................................7-2

Figure 7-2 Web LCT interface.............................................................................................................................7-2

Figure 7-3 Web LCT networking mode (near end)..............................................................................................7-4

Figure 7-4 Web LCT networking mode (NE cascade).........................................................................................7-4

Figure 7-5 Web LCT networking mode (gateway mode)....................................................................................7-5

Figure 7-6 Single layer management network......................................................................................................7-6

Figure 7-7 Hierarchical management network.....................................................................................................7-7

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Figure 8-1 W-curve............................................................................................................................................8-12

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Tables

Table 1-1 IDU types.............................................................................................................................................1-3

Table 1-2 OD U types............................................................................................................................................1-5

Table 2-1 IDU 605 types......................................................................................................................................2-2

Table 2-2 Int erface types and maximum interface capacity.................................................................................2-2

Table 2-3 Fun ctional units of the IDU 605...........................................................................................................2-5

Table 2-4 Lis t of IDU 605 logic boards...............................................................................................................2-6

Table 2-5 Sig nal processing flow (transmit direction).........................................................................................2-7

Table 2-6 Sig nal processing flow (receive direction)........................ ...................................................................2-8

Table 3-1 Fun ctions of Ethernet service processing boards.................................................................................3-2

Table 3-2 IDU 620 configuration modes......................................................... .....................................................3-4

Table 3-3 Int erface types and maximum interface capacity.................................................................................3-4

Table 3-4 Fun ctional units of the IDU 610 or IDU 620.......................................................................................3-8

Table 3-5 Lis t of IDU 610 and IDU 620 boards...................................................................................................3-9

Table 3-6 Tra nsmit direction..............................................................................................................................3-12Table 3-7 Receive direction................................................................................................................................3-13

Table 4-1 OD U types............................................................................................................................................4-2

Table 8-1 Radio work modes................................................................................................................................8-2

Table 8-2 Fre quency band (SP ODUs).................................................................................................................8-3

Table 8-3 Fre quency band (SPA ODUs)..............................................................................................................8-3

Table 8-4 Fre quency band (HP ODUs)................................................................................................................8-4

Table 8-5 Fre quency band (LP ODUs).................................................................................................................8-4

Table 8-6 Fre quency band (LPA ODUs)......................................................... .....................................................8-4

Table 8-7 Ty pical values of the receiver sensitivity (i)........................................................................................8-5

Table 8-8 Ty pical values of the receiver sensitivity (ii).......................................................................................8-6

Table 8-9 Ty pical values of the receiver sensitivity (iii)......................................................................................8-6

Table 8-10 Typical values of the receiver sensitivity (iv)....................................................................................8-7

Table 8-11 Tr ansceiver performance (SP ODUs)................................................................................................8-8

Table 8-12 Tr ansceiver performance (SPA ODUs)..............................................................................................8-8

Table 8-13 Tr ansceiver performance (HP ODUs)................................................................................ ................8-9

Table 8-14 Transceiver performance (LP ODUs)..............................................................................................8-10

Table 8-15 Transceiver performance (LPA ODUs)...........................................................................................8-11

Table 8-16 Anti-multipath fading performance..................................................................................................8-11

Table 8-17 IF performance.................................................................................................................................8-12

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Table 8-18 Baseband signals processing performance of the modem................................................................8-13

Table 8-19 Component reliability (i)..................................................................................................................8-13

Table 8-20 Component reliability (ii).................................................................................................................8-13

Table 8-21 Link reliability per hop (i)................................................................................................................8-14

Table 8-22 Link reliability per hop (ii)...............................................................................................................8-14

Table 8-23 STM-4 optical interface performance..............................................................................................8-14

Table 8-24 STM-1 optical interface performance..............................................................................................8-15

Table 8-25 STM-1 electrical interface performance..........................................................................................8-16

Table 8-26 E3/T3 interface performance............................................................................................................8-16

Table 8-27 E1 interface performance.................................................................................................................8-16

Table 8-28 GE optical interface performance....................................................................................................8-17

Table 8-29 10/100/1000BASE-T(X) interface performance..............................................................................8-17

Table 8-30 10/100BASE-T(X) interface performance.......................................................................................8-18

Table 8-31 Orderwire interface performance.....................................................................................................8-18Table 8-32 Wayside service interface performance...........................................................................................8-19

Table 8-33 Synchronous data interface performance.........................................................................................8-19

Table 8-34 Asynchronous data interface performance.......................................................................................8-19

Table 8-35 Jit ter performance.............................................................................................................................8-20

Table 8-36 Clock timing and synchronization performance..............................................................................8-20

Table 8-37 Dimensions of the OptiX RTN 600.................................................................................................8-21

Table 8-38 Table 8-42 Weight and Power Consumption of the OptiX RTN 600..............................................8-21

Table 8-39 Power supply of the OptiX RTN 600...............................................................................................8-21

Table 8-40 Environment of the OptiX RTN 600................................................................................................8-22Table A-1 Fr equency information of the 7 GHz frequency band........................................................................A-1

Table A-2 Fr equency information of the 8 GHz frequency band........................................................................A-3

Table A-3 Fr equency information of the 11 GHz frequency band......................................................................A-3







Table A-10 Frequency information of the 6 GHz frequency band......................................................................A-7



Table A-13 Frequency information of the 11 GHz frequency band....................................................................A-9

Table A-14 Frequency information of the 13 GHz frequency band..................................................................A-10






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Table A-33 Frequency information of the 18 GHz frequency band..................................................................A-22Table A-34 Frequency information of the 23 GHz frequency band..................................................................A-22








Table A-42 Frequency information of the 26 GHz frequency band..................................................................A-28Table A-43 Frequency information of the 32 GHz frequency band..................................................................A-28


Table B-1 ITU-R standard...................................................................................................................................B-1

Table B-2 ET SI standard.....................................................................................................................................B-2

Table B-3 ITU-T standard...................................................................................................................................B-3

Table B-4 IETF standard.....................................................................................................................................B-5

Table B-5 IEEE standard.....................................................................................................................................B-6

Table B-6 environmental standard.......................................................................................................................B-6

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About This Document

PurposeThis document describes the features, structure, configuration, networking and application,network management system (NMS), and performance indexes of the OptiX RTN 600 radiotransmission system, thus providing comprehensive information of the OptiX RTN 600 productfor readers.

Related VersionsThe following table lists the product versions related to this document.

Product Name VersionOptiX RTN 600 V100R002

OptiX iManager T2000 V200R006C03

Intended AudienceThis document is intended for network planning engineers.

Before you read this document, ensure that you have acquired the basic knowledge of digitalmicrowave communication.

OrganizationThis document is organized as follows.

Chapter Content

1 Product Introduction Describes the network application and structure of the OptiXRTN 600.

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Symbol Description

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

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

General Conventions

The general conventions that may be found in this document are defined as follows.

Convention Description

Times New Roman Normal paragraphs are in Times New Roman.

Boldface Names of files, directories, folders, and users are inboldface . For example, log in as user root .

Italic Book titles are in italics .

Courier New Examples of information displayed on the screen are inCourier New .

Update HistoryUpdates between document issues are cumulative. Therefore, the latest document issue containsall updates made in previous issues.

Updates in Issue 03 (2008-08-30)

Third release.

Description of LPA ODUs are added. Typical values of the receiver sensitivity are update.

Known defects are modified as required.


Second release.

Known defects are modified as required.


Initial release.

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1 Product IntroductionAbout This Chapter

This chapter describes the network application and components of the OptiX RTN 600.

1.1 Network ApplicationThe OptiX RTN 600 radio transmission system is a split-mount digital microwave transmissionsystem developed by Huawei Technologies Co., Ltd. (hereinafter referred to as Huawei).

1.2 ComponentsThe OptiX RTN 600 adopts a split structure. The system consists of the IDU and the ODU. AnODU is connected to an IDU through a coaxial cable.

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1.1 Network ApplicationThe OptiX RTN 600 radio transmission system is a split-mount digital microwave transmissionsystem developed by Huawei Technologies Co., Ltd. (hereinafter referred to as Huawei).

The OptiX RTN 600 provides various service interfaces and features flexible configuration andeasy installation. The OptiX RTN 600 can construct a radio transmission network that serves as

backhaul links for mobile communication networks or private networks. The OptiX RTN 600can also construct a hybrid network that is used to transmit SDH, PDH, and Ethernet servicestogether with the OptiX series optical transmission products of Huawei.

Figure 1-1 Radio transmission network composed of the OptiX RTN 600

RTN 600(IDU 605)

1+1

1+0

1+0

1+1

1+0

PDH microwave link SDH microwave link

E1

RTN 600(IDU 605)

RTN 600(IDU 610) RTN 600

(IDU 610)RTN 600(IDU 620)

RTN 600(IDU 620)

RTN 600(IDU 620)

RTN 600(IDU 605)

RTN 600(IDU 620) 1+1

RTN 600(IDU 620)

1+0

1+0 1+0

NOTE

The OptiX RTN 600 configures different types of indoor units (IDU), including IDU 605, IDU 610, and IDU620, to meet the requirements of different application scenarios, and the OptiX RTN 600 outdoor units (ODU)can be applied in all the application scenarios.

1 Product IntroductionOptiX RTN 600 Radio Transmission System

Product Description

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Figure 1-2 Hybrid transmission network composed of the OptiX RTN 600 and OptiX seriesoptical transmission products

SDH/PDH/Ethernet

SDH/PDH/Ethernet

STM-1 ring

STM-4 ring

OptiX opticaltransmission product OptiX RTN 600

1.2 ComponentsThe OptiX RTN 600 adopts a split structure. The system consists of the IDU and the ODU. AnODU is connected to an IDU through a coaxial cable.

IDU

The IDU is the indoor unit of an OptiX RTN 600 system. It accesses services, and performsmultiplexing/demultiplexing and IF processing of the services.

The OptiX RTN 600 IDU is available in three types: IDU 605, IDU 610, and IDU 620.

Table 1-1 IDU types

Item IDU 605 IDU 610 IDU 620

Chassis height 1U 1U 2U

Pluggable board Not supported Supported

Microwave type PDH SDH/PDH



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Item IDU 605 IDU 610 IDU 620

Microwavemodulation scheme

QPSK QPSK/16QAM/32QAM/64QAM/128QAM

Number of microwavedirections

1 1 1 to 4

RF configurationmode

1+0 non-protectionconfiguration and 1+1 protectionconfiguration

1+0 non-protectionconfiguration

1+0 non-protectionconfiguration, 1+1

protectionconfiguration, N+1

protectionconfiguration, andXPIC configuration

Service type E1 service SDH, PDH, and Ethernet services

Figure 1-3 IDU 605 (IDU 605 2B, 48 V/60 V input)

Figure 1-4 IDU 610

Figure 1-5 IDU 620


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ODUThe ODU is the outdoor unit of the OptiX RTN 600. It performs frequency conversion andamplification of signals.

The OptiX RTN 600 ODU is available in three series: Standard Power, High Power, and Lowcapacity for PDH.

Table 1-2 ODU types

Item Description

Standard PowerODU

High Power ODU Low Capacity forPDH ODU

ODU type SP and SPA HP LP and LPA

Frequency band 7/8/11/13/15/18/23/26/38 GHz (SPODU)

6/7/8/11/13/15/18/23 GHz (SPA ODU)

7/8/11/13/15/18/23/26/32/38 GHz

7/8/11/13/15/18/23GHz (LP ODU)7/8/11/13/15/18/23/26/32/38 GHz

LPA ODU

Microwave type SDH/PDH PDH


QPSK/16QAM/32QAM/64QAM/128QAM QPSK/16QAM

Transmit power Standard power High power Common power

There are two configurations between ODUs and antennas:

l One ODU configured for one antenna

The ODU can be directly mounted on the antenna or separately connected to the antennathrough a flexible waveguide.

l Two ODUs configured for one antenna

An RF signal combiner/splitter (hereinafter referred to as hybrid coupler) is used to connectthe antenna and the two ODUs. The hybrid coupler can be directly mounted on the antennaor separately connected to the antenna through a flexible waveguide.



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Figure 1-6 One ODU configured for one antenna

Figure 1-7 Two ODUs configured for one antenna


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2 IDU 605About This Chapter

The IDU 605 is a type of PDH IDU of the OptiX RTN 600 and is used at an end node on a radiotransmission network. This chapter describes the features, system architecture, boardconfiguration , and signal processing flow of the IDU 605.

2.1 FeaturesThe IDU 605 is highly integrated, and thus features easy installation, easy commissioning, andsimple troubl eshooting. In addition, the routine maintenance is unnecessary.

2.2 System A rchitectureThe IDU 605 consists of a series of functional units, including the service interface unit, IF unit,control unit, auxiliary interface unit, and power unit.

2.3 Logic Bo ard ConfigurationAn IDU 605 is composed of one system board and one power board. Each functional unit onthe physical b oards of the IDU 605 corresponds to a logical board and is allocated with a logicalslot. In this w ay, the NMS can manage the functional units as independent objects.

2.4 Signal Processing FlowThis section describes the signal processing flow of the OptiX RTN 600 that uses the IDU 605through the example of E1 signals.

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2.1 FeaturesThe IDU 605 is highly integrated, and thus features easy installation, easy commissioning, andsimple troubleshooting. In addition, the routine maintenance is unnecessary.

Multiple Types

The IDU 605 is available in multiple types and can meet the requirements of different applicationscenarios.

Table 2-1 IDU 605 types

IDU 605 Type RF Configuration E1 Capacity Power Supply

1A 1+0 5xE1 48 V/60 V

1B 1+0 16xE1 48 V/60 V

2B 1+1 HSB/FD/SD 16xE1 48 V/60 V

High Integrationl IDU 605 dimensions: 442 mm x 220 mm x 44 mm (width x depth x height)

l The functional modules except for the power module of the IDU 605 are integrated on one board.

Rich Interfaces

For the types and the maximum capacity of the IDU 605 interfaces, refer to Table 2-2 .

Table 2-2 Interface types and maximum interface capacity

InterfaceType

Specifications IDU 605 1A IDU 605 1B IDU 605 2B

Serviceinterface

75/120-ohm E1 interface 5 16 16

Auxiliaryinterface

Orderwire interface 1

64 kbit/s synchronous datainterface a

1

RS-232 asynchronous datainterface

1

Managementinterface

10/100BASE-T(X) NMinterface

1

10/100BASE-T(X) NEcascade interface

1

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InterfaceType

Specifications IDU 605 1A IDU 605 1B IDU 605 2B

Management serial port 1

Alarminterface

Alarm input/output interface 3 inputs + 1 output

NOTE

a: The synchronous data interface can be used to transparently transmit an orderwire overhead byte.

Software Programmable RadioThe IDU 605 supports the software programmable radio (SPR) function, which means that youcan set the microwave capacity by using the software.

Automatic Transmit Power ControlThe automatic transmit power control (ATPC) function enables the output power of thetransmitter to automatically trace the level fluctuation at the receive end. This reduces theinterference with neighboring systems and residual BER.

Multiple Network Management Modesl You can connect an iManager T2000 web local craft terminal (Web LCT) to an OptiX RTN

600 NE and use the Web LCT to manage the NE.l You can connect a Web LCT to an OptiX RTN 600 NE in a transmission network and use

the Web LCT to manage the OptiX RTN 600 NEs in the network.l You can use the iManager T2000 to manage all the OptiX RTN 600 and other OptiX optical

transmission systems in the network.l You can use the simple network management protocol (SNMP) agent to query alarms and

performance events.

Complete Network Management Information Interworking SchemesAt the physical layer, the IDU 605 supports the following NM information interworkingschemes:

l Using three user-defined DCC bytes in the PDH microwave frame to carry NM information

l Using extended ECC to carry NM information through a TCP/IP network

At the network layer, the IDU 605 supports the following NM information interworkingschemes:

l Using HWECC (a private protocol of Huawei) to carry NM information

l Using IP over DCC to carry NM information

Easy InstallationThe IDU 605 can be installed in the following modes:



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l In a 300 mm ETSI cabinetl In a 600 mm ETSI cabinetl In a 450 mm 19-inch cabinetl

In a 600 mm 19-inch cabinetl In an open cabinetl On the walll On a table

Easy Maintenancel The boards are installed inside the IDU chassis, which greatly facilitates maintenance

operations.l The IDU 605 adopts air convection and does not have a fan system. Therefore, you do not

need to maintain the fan system, and at the same time, the noise is reduced.l The IDU 605 supports various loopback functions of the service ports and IF ports.l The IDU 605 is embedded with a test system. You can perform the Pseudo-random binary

sequence (PRBS) BER test of an E1 port when no special test tools are at hand.l The IDU 605 supports the monitoring of important radio transmission performance indexes,

such as the microwave transmit power and received signal strength indicator (RSSI).l The IDU 605 supports remote loading of the software and data of an NE by using the NMS.l The IDU 605 supports the hot fix function. You can upgrade the software that is running

without interrupting services.l The IDU 605 supports the software version rollback function. When a software upgrade

fails, the original services of the system can be recovered.

2.2 System ArchitectureThe IDU 605 consists of a series of functional units, including the service interface unit, IF unit,control unit, auxiliary interface unit, and power unit.

Figure 2-1 System architecture of the IDU 605

Serviceinterface

unitIF unit

ODU

Power unit

Controlunit

Auxiliaryinterface

unitE1

-48V/-60V DC

RF signal

IF signal

Synchronous/asynchronousdata

Orderwire dataExternal alarmdata

NM data

IDU 605

Control bus

AntennaServicesignal

Overheadsignal


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Table 2-3 Functional units of the IDU 605

Functional Unit Function Description

Service interface unit l Accesses E1 signals.

IF unit l Converts signals between baseband service signals and IF analogsignals.

l Provides the operations and maintenance (O&M) channel between the IDU and the ODU.

l Supports FEC.

l Processes overheads.

Control unit l System communications and control.

l System configuration and management.

l Collects alarms and monitors performance.

Auxiliary interfaceunit

l Provides the orderwire interface.

l Provides the synchronous/asynchronous data interface.

l Provides the external alarm input/output interface.

Power unit l Accesses 48 V/60 V DC power.

l Provides +3.3 V power for the IDU.

l Provides 48 V power for the ODU.

2.3 Logic Board ConfigurationAn IDU 605 is composed of one system board and one power board. Each functional unit onthe physical boards of the IDU 605 corresponds to a logical board and is allocated with a logicalslot. In this way, the NMS can manage the functional units as independent objects.



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No. Logical Board Signal Processing Description

2 IF0 (IDU) l Forms microwave frames by adding microwave frameoverheads to the 2.048 Mbit/s signals.

l Scrambling.l FEC coding.

l Digital modulation.

l D/A conversion.

l Analog modulation.

l Combines the analog IF signals and ODU O&M signals.The ODU O&M signals have been modulated by theauxiliary modem.

l Transmits the combined signals and 48 V power to theODU through the coaxial cable.

3 ODU l Splits the analog IF signals, ODU O&M signals, and 48V power.

l Converts the analog IF signals into RF signals through upconversions and amplifications.

l Transmits the RF signals to the antenna through thewaveguide.

Table 2-6 Signal processing flow (receive direction)


1 ODU l Isolates and filters RF signals.

l Converts the RF signals into analog IF signals throughdown conversions and amplifications.

l Controls the level of the signals through the automatic gaincontrol (AGC) circuit.

l Combines the IF signals and the ODU O&M signals. TheO&M signals have been modulated by an auxiliarymodem.

l Transmits the combined signals to the IF0 board throughthe coaxial cable.


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2 IF0 (IDU) l Splits the received analog IF signals and ODU O&Msignals.

l Controls the level of the analog IF signals through the AGCcircuit.

l Performs A/D conversion for the IF signals.

l Digital demodulation.

l Time domain adaptive equalization.

l FEC decoding.

l Synchronizes and descrambles the frames.

l Extracts overheads from microwave frames.

l Extracts the 2.048 Mbit/s signals from the microwave

frames and transmits the 2.048 Mbit/s signals to the PF1/PH1.

3 PF1/PH1 (IDU) l HDB3 coding.

l Outputs E1 signals.



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3 IDU 610 and IDU 620About This Chapter

The IDU 610 or IDU 620 is a type of SDH/PDH microwave equipment and is applied at theterminal node s, relay nodes, and convergence nodes of a radio transmission network. Thischapter descr ibes the features, system arc hitecture, board configuration, and signal processingflow of the I DU 610 and IDU 620.

3.1 FeaturesThe IDU 610 and IDU 620 have built-in add/drop multiplexers (ADM) that support flexibleconfiguration . In addition, the IDU 610 and IDU 620 provide complete functions and can realize

multi-service transmission over microwave.3.2 System A rchitectureThe IDU 610 or IDU 620 consists of a series of functional units, including the service interfaceunit, cross-co nnect unit, IF unit, control unit, clock unit, auxiliary interface unit, fan unit, and

power unit.

3.3 Board Co nfigurationThe IDU 610 and IDU 620 can realize different functions by configuring different types of

boards.

3.4 Signal Processing FlowThis section describes the signal processing flow of the OptiX RTN 600 that uses the IDU 610

or IDU 620 through the example of STM-1 optical signals.

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3.1 Features

The IDU 610 and IDU 620 have built-in add/drop multiplexers (ADM) that support flexibleconfiguration. In addition, the IDU 610 and IDU 620 provide complete functions and can realizemulti-service transmission over microwave.

Built-In ADM

The built-in ADMs of the IDU 610 and IDU 620 support full time division cross-connectionsof VC-12s, VC-3s, or VC-4s with a capacity equal to 16x16 VC-4s. As a result, the IDU 610and IDU 620 can realize the following features:

l Convergence and grooming of multi-directional microwave services (for the IDU 620 only)

l Constructing various SDH/PDH ring networks or more complicated network topologies

l Quick service availability and flexible service grooming

Microwave-Based MSTPl The IDU 610 and IDU 620 support the transmission of hybrid services of PDH, SDH,

Ethernet, and other services over microwave on the same transmission platform.

l The IDU 610 and IDU 620 use the same platform as the OptiX MSTP optical transmission products for transmitting or terminating various services carried by the OptiX opticaltransmission products.

l The IDU 610 and IDU 620 support transparent transmission and Layer 2 switching of Ethernet services.Table 3-1 lists the functions of Ethernet service processing boards of the IDU 610 and IDU620.

Table 3-1 Functions of Ethernet service processing boards

Feature Board

EFT4 EMS6

Interface 4xFE 2xGE/FE + 4xFE

Service frame format Ethernet II and IEEE 802.3

Jumbo frame Supports the Jumbo frame that has a maximum of 9600 bytes.

Uplink bandwidth 2xVC-4

Mapping mode Supports VC-12, VC-3, VC-12-Xv (x 63), and VC-3-Xv(x 6).

Number of VCTRUNKs 4 8

Transparent transmission

of Ethernet services

Supported Supported

3 IDU 610 and IDU 620OptiX RTN 600 Radio Transmission System

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Feature Board

EFT4 EMS6

Layer 2 switching of Ethernet services

Not supported Supported

VLAN Transparent transmission l Supports VLAN andQinQ.

l Supports the adding,deletion and exchange of the VLAN labels that arecompliant with IEEE802.1q/p.

QoS Not supported Supported

STP/RSTP Not supported SupportedIGMP Snooping Not supported Supported

Encapsulation format GFP, LAPS, and HDLC

LCAS Supported

Flow control IEEE 802.3x

Test frame Supported

Ethernet performancemonitoring

Supported

High Integrationl IDU 610 dimensions: 442 mm x 220 mm x 44 mm (width x depth x height), two-layer

structurel IDU 620 dimensions: 442 mm x 220 mm x 87 mm (width x depth x height), four-layer

structurel The power unit, cross-connect unit, and clock unit are integrated into one board of the IDU.

l The control unit and auxiliary interface unit are integrated into one board of the IDU 610

and IDU 620.

Multiple RF Configuration ModesThe IDU 610 supports 1+0 non-protection configuration.

The IDU 620 supports the configuration modes listed in Table 3-2 .



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Table 3-2 IDU 620 configuration modes

Configuration Mode Maximum Number ofDirections

1+0 non-protection 4

1+1 protection 1+1 hot standby (HSB) 2

1+1 frequency diversity (FD)

1+1 space diversity (SD)

N+1 protectionconfiguration

2+1 (single-NE configuration) 1

3+1 (dual-NE configuration) 1

XPIC Single-NE configuration 2

Dual-NE configuration 4

Rich Interfaces

For the types and the maximum capacity of the IDU 610 or IDU 620 interfaces, refer to Table3-3 . Later versions are expected to have more interfaces to meet the market demand.

Table 3-3 Interface types and maximum interface capacity

InterfaceType Specifications IDU 610 IDU 620

PDHinterface

75/120-ohm E1 interface 32 128

75-ohm E3/T3 interface 3 12

SDHinterface

STM-4 optical interface: S-4.1, L-4.1,L-4.2

2

STM-1 optical interface: Ie-1, S-1.1,L-1.1, L-1.2

2a 8 b

75-ohm STM-1 electrical interface2

a

8 b

Ethernetinterface

10/100BASE-T(X) interface 4 16

10/100/1000BASE-T(X) interface 6

GE optical interface: 1000BASE-SX,1000BASE-LX

6

Externalclock interface

75-ohm 2048 kHz or 2048 kbit/s externalclock interface c

1 2

Auxiliaryinterface

Orderwire phone interface 1 1


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InterfaceType

Specifications IDU 610 IDU 620

Wayside (WS) interface (sharing thesame interface as the external clock interface)

1 2

64 kbit/s synchronous data interface d 1 1

RS-232 asynchronous data interface 1 1

Managementinterface

10/100BASE-T(X) NM interface 1 1

10/100BASE-T(X) NE cascade interface 1 1

Management serial port 1 1

Alarm

interface

Alarm input/output interface 6 inputs + 2

outputs

6 inputs + 2

outputs

NOTE

l a: The IDU 610 supports four STM-1 interfaces when it functions as an optical transmission system.

l b: The IDU 620 supports 10 STM-1 interfaces when it functions as an optical transmission system.

l c: The external clock interface can be used to transparently transmit DCC bytes, synchronous data overhead bytes, asynchronous data overhead bytes, or orderwire overhead bytes.

l d: The synchronous data interface can be used to transparently transmit an orderwire overhead byte.

Cross-Polarization Interference Cancellation

Cross-polarization interference cancellation (XPIC) is a technology used together with co-channel dual-polarization (CCDP). The application of the two technologies doubles the wirelesslink capacity over the same channel.

Automatic Transmit Power Control

The automatic transmit power control (ATPC) function enables the output power of thetransmitter to automatically trace the level fluctuation at the receive end. This reduces theinterference with neighboring systems and residual BER.

Flexible System Configuration and Easy Expansionl The IDU 610 and IDU 620 can be configured with different boards according to different

services and different application scenarios.

l The IDU 610 and IDU 620 can be upgraded to optical transmission systems by replacingthe IF boards with optical interface boards.

l The IDU 610 and IDU 620 support the software programmed radio (SPR) function. Themicrowave capacity and modulation scheme can be set by using the software.

l

The IDU 610 and IDU 620 support flexible service allocation and service grooming.



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Complete Protection Schemesl The IDU 620 supports 1+1 backup of the input power supply and the internal power module.l The IDU 620 supports 1+1 backup of the cross-connect unit and the timing unit.

l The IDU 620 supports 1+1 protection configuration and N+1 protection configuration.l The IDU 610 and IDU 620 support sub-network connection protection (SNCP) between

optical transmission links, between radio links, or between optical transmission links andradio links.

l The IDU 610 and IDU 620 support linear MSP on optical transmission links and STM-1elinks.

l The IDU 620 supports the two-fiber bidirectional MSP ring on STM-4 optical transmissionlinks.

Powerful Clock Processing Capabilityl

The IDU 610 and IDU 620 can extract the clock source from the line, tributary, microwave,and external clock signal.l The IDU 610 and IDU 620 support the synchronization status message (SSM) protocol and

the extended SSM protocol.l The IDU 610 and IDU 620 support the tributary retiming function.

Multiple Network Management Modesl You can connect a Web LCT to an OptiX RTN 600 NE and use the Web LCT to manage

the NE.l You can connect a Web LCT to an OptiX RTN 600 NE in a transmission network and use

the Web LCT to manage the OptiX RTN 600 NEs in the network.l You can use the iManager T2000 to manage all the OptiX RTN 600 and other OptiX optical

transmission systems in the network.l You can use the SNMP agent to query alarms and performance events.

Complete Network Management Information Interworking SchemesAt the physical layer, the IDU 610 and IDU 620 support the following NM informationinterworking schemes:

l Using one or three user-defined DCC bytes in the PDH microwave frame to carry NMinformation

l Using the D1 to D3 bytes in the SDH microwave frame and the SDH frame to carry NMinformation



l Using extended ECC to carry NM information through a TCP/IP network l Using the DCC bytes that are transmitted by the external clock interface to carry NM

information through an SDH/PDH network

At the network layer, the IDU 610 and IDU 620 support the following NM informationinterworking schemes:


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l Using HWECC to carry NM information

l Using IP over DCC to carry NM information

l Using OSI over DCC to carry NM information

Easy Installation

The IDU 610 and IDU 620 can be installed in the following modes:

l In a 300 mm ETSI cabinet

l In a 600 mm ETSI cabinet

l In a 450 mm 19-inch cabinet

l In a 600 mm 19-inch cabinet

l In an open cabinet

l

On the walll On a table

Easy Maintenancel The IDU 610 adopts air convection and does not have a fan system. Therefore, you do not

need to maintain the fan system, and at the same time, the noise is reduced.l The IDU 610 and IDU 620 provide the SDH alarms and performance events that are

compliant with ITU-T G.783.l The IDU 610 and IDU 620 support various loopback functions of the service ports and IF

ports.l The IDU 610 and IDU 620 are embedded with a test system. You can perform the following

tests when no special test tools are at hand:

PRBS BER test at an E1 port

Transmitting/Receiving of Ethernet GFP test frames

l The IDU 610 and IDU 620 support the monitoring of important radio transmission performance indexes, such as the microwave transmit power and RSSI.

l The IDU 610 and IDU 620 provide RMON performance events.

l The storage card that is used to store data configuration files is removable. You can restorethe data of the SCC board by replacing the storage card.

l

The IDU 610 and IDU 620 support remote loading of the software and data of an NE byusing the NMS.l The IDU 610 and IDU 620 support the hot fix function. You can upgrade the software that

is running without interrupting services.l The IDU 610 and IDU 620 support the software version rollback function. When a software

upgrade fails, the original services of the system can be recovered.

3.2 System ArchitectureThe IDU 610 or IDU 620 consists of a series of functional units, including the service interface

unit, cross-connect unit, IF unit, control unit, clock unit, auxiliary interface unit, fan unit, and power unit.



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Functional Unit Function Description

Power unit l Accesses 48 V/60 V DC power.

l Provides 48 V/+3.3 V power for the IDU.

l Provides 48 V power for the ODU.

Fan unit l Provides wind cooling for the IDU 620.

3.3 Board ConfigurationThe IDU 610 and IDU 620 can realize different functions by configuring different types of

boards.

Figure 3-2 IDU 610 configuration

EXT Slot3

PXC Slot1

EXT/IF Slot4

SCC Slot2

Figure 3-3 IDU 620 configuration

FAN

Slot 20

EXT/IF Slot7

EXT/IF Slot5

PXC Slot3

PXC Slot1

EXT/IF Slot8

EXT/IF Slot6

EXT Slot4

SCC Slot2

NOTE

EXT refers to the extended slot for a service board. IF refers to the slot for an IF board.

Table 3-5 List of IDU 610 and IDU 620 boards

BoardName

Full Name Valid Slot Description

IDU 610 IDU 620

PXC Integrated power cross-connect clock

board

Slot 1 Slot 1/3 Accesses one 48 V/60 VDC power signal

Provides a full timeslotcross-connection for VC-12/VC-3/VC-4services equivalent to16x16 VC-4.

Supports the input andoutput of one external clock signal.



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BoardName


IDU 610 IDU 620

SCC System control andcommunication

board

Slot 2 Slot 2 Integrates an EOWsubboard, occupying thelogical slot 21.

Provides the NM interface,external alarm interface,synchronous/asynchronousdata interface, andorderwire phone interface.

IF1A Isolatedintermediatefrequency board

Slot 4 Slot 5/6/7/8 Provides one IF interface.The logical slot number of the ODU that is connectedto the board is 10 plus theslot number of the board.

The IF1A and IF1B boardssupport the TU-based andSTM-1 based microwaveframe structures for establishing microwavelinks between two sets of IDU 610 or IDU 620. TheIF0A and IF0B boardssupport the E1-basedmicrowave frame structure

for establishing microwavelinks with the IDU 605.

The IF1A and IF0A boardssupport two power distribution modes: DC-Iand DC-C. The IF1B andIF0B boards support onlythe DC-C power distribution mode.

IF1B Non-isolatedintermediatefrequency board

IF0A PDH isolatedintermediatefrequency board

IF0B PDH non-isolatedintermediatefrequency board

IFX XPIC intermediatefrequency board

Slot 5/6/7/8 Provides one IF interface.The logical slot number of

the ODU that is connectedto the IFX board is 10 plusthe slot number of the IFX

board.

Provides the XPICfunction.

Provides the STM-1 basedmicrowave frame structure.

Supports only the DC-C power distribution mode.


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BoardName


IDU 610 IDU 620

SL4 SDH single STM-4 port board

Slot 6/8 Uses the SFP opticalmodule to provide oneSTM-4 optical interface.

SL1 SDH single STM-1 port board

Slot 3/4 Slot4/5/6/7/8

Uses the SFP opticalmodule to provide oneSTM-1 optical interface.

SD1 SDH dual STM-1 port board

Uses the SFP opticalmodule to provide twoSTM-1 optical interfaces.

SLE SDH single STM-1electrical port board

Provides one 75-ohmSTM-1 electrical interface.

SDE SDH dual STM-1electrical port board

Provides two 75-ohmSTM-1 electricalinterfaces.

PL3 3xE3/T3 tributary board

Provides three 75-ohm E3/T3 electrical interfaces.

PO1 8xE1 tributary board

Provides eight 75/120-ohmE1 interfaces.

PH1 16xE1 tributary board

Provides 16 75/120-ohm E1interfaces.

PD1 32xE1 tributary board

Provides 32 75/120-ohm E1interfaces.

EFT4 4-port 10M/100MEthernettransparenttransmission

processing board

Provides a 4x10/100BASE-T(X) interface for

processing Ethernettransparent transmissionservices. The maximumuplink bandwidth of the

board is 2xVC-4.



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BoardName


IDU 610 IDU 620

EMS6 4 Port RJ45 + 2 PortSFP Fast Ethernet /Gigabit EthernetSwitchingProcessing Board

Slot 5/6/7/8 Provides four FE electricalinterfaces. The other two

ports use SFP optical/electrical modules for

providing two GE optical/electrical interfaces. TheGE electrical interface iscompatible with the FEelectrical interface.

Supports Ethernettransparent transmissionservices and Layer 2

switching services. Themaximum uplink bandwidth of the board is2xVC-4.

FAN Fan board - Slot 20 Provides wind cooling for the IDU 620.

3.4 Signal Processing FlowThis section describes the signal processing flow of the OptiX RTN 600 that uses the IDU 610or IDU 620 through the example of STM-1 optical signals.

Figure 3-4 Signal processing flow

Antenna

SL1/SD1 PXC

IF1A/Bor IFX ODU

RFsignal

IFsignal

IDU 610/620

BasebandsignalSTM-1o

Basebandsignal

Table 3-6 Transmit direction


1 SL1/SD1 (IDU) l Converts the STM-1 optical signals into STM-1 electricalsignals.


l Extracts the overheads from the STM-1 frames.

l Transmits the VC-4 signals in the STM-1 frames to thecross-connect unit through the service bus.


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2 PXC (IDU) l Cross-connects the VC-4 signals to the service bus of theIF board.

3 IF1A/IF1B or IFX(IDU)

l Multiplexes the VC-4 signals, microwave frameoverheads, and pointers into STM-1 microwave frames.

l Scrambling.

l FEC coding.

l Digital modulation.

l D/A conversion.

l Analog modulation.

l Combines the analog IF signals and ODU O&M signals.The ODU O&M signals have been modulated by the

auxiliary modem.l Transmits the combined signals and 48 V power to the

ODU through the coaxial cable.

4 ODU l Splits the analog IF signals, ODU O&M signals, and 48V power.

l Converts the analog IF signals into RF signals through upconversions and amplifications.

l Transmits the RF signals to the antenna through thewaveguide.

Table 3-7 Receive direction


1 ODU l Isolates and filters RF signals.

l Converts the RF signals into analog IF signals throughdown conversions and amplifications.

l Controls the level of the signals through the automatic gaincontrol (AGC) circuit.

l Combines the IF signals and the ODU O&M signals. TheO&M signals have been modulated by an auxiliarymodem.

l Transmits the combined signals to the IF board.



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2 IF1A/IF1B or IFX(IDU)

l Splits the received analog IF signals and ODU O&Msignals.

l Controls the level of the analog IF signals through the AGCcircuit.

l Performs A/D conversion for the IF signals.

l Digital demodulation.

l Time domain adaptive equalization.

l FEC decoding.


l Extracts overheads from microwave frames.

l Extracts VC-4 signals from microwave frames, and

transmits the VC-4 signals to the cross-connect unit.3 PXC (IDU) l Cross-connects the VC-4 signals to the service bus of the

SL1/SD1 board.

4 SL1/SD1 (IDU) l Multiplexes the VC-4 signals, overheads, and pointers intoSTM-1 signals.

l Scrambles the signals.

l Converts the signals into STM-1 optical signals.


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4 ODUAbout This Chapter

The OptiX RTN 600 provides a variety of ODUs for meeting the requirements of different typesof radio transmission nodes. This chapter describes the features and system architecture of theOptiX RTN 600 ODUs.

4.1 FeaturesThe OptiX RTN 600 ODUs have characteristic structures, functionality, and serviceability.

4.2 System ArchitectureThe ODU is an integrated system and has various types. The structures and working principlesof various types of ODUs are the same.

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4.1 FeaturesThe OptiX RTN 600 ODUs have characteristic structures, functionality, and serviceability.

Multiple Types

The OptiX RTN 600 ODU is available in three series: Standard Power, High Power, and Lowcapacity for PDH.

Table 4-1 ODU types

Item Description

Standard Power

ODU

High Power ODU Low Capacity for

PDH ODUODU type SP and SPA HP LP and LPA

Frequency band 7/8/11/13/15/18/23/26/38 GHz (SPODU)

6/7/8/11/13/15/18/23 GHz (SPA ODU)

7/8/11/13/15/18/23/26/32/38 GHz

7/8/11/13/15/18/23GHz (LP ODU)

7/8/11/13/15/18/23/26/32/38 GHz

LPA ODU

Microwave type SDH/PDH PDH


QPSK/16QAM/32QAM/64QAM/128QAM QPSK/16QAM

Transmit power Standard power High power Common power

Unified Interface

The IDU and ODU adopt the unified physical interface and software communication protocolthat do not vary according to the types of the IDU or ODU for interconnection.

Software Programmable RadioThe ODU supports the SPR function, which means that you can set the microwave modulationscheme, bandwidth, transmit frequency, transmit power, and T/R spacing by using the software.

Easy Installationl The ODU supports two installation modes: direct mount and separate mount.

l The ODU uses latches for fastening, which simplifies the installation.

Easy Maintenancel The boards are installed inside the ODU, which greatly facilitates maintenance operations.

4 ODUOptiX RTN 600 Radio Transmission System

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l The ODU provides an RSSI test port through which you can test the RSSI of the ODU byusing a multimeter.

l The ODU supports the monitoring of key radio transmission performance indexes such asthe microwave transmit power and RSSI by using the NMS.

4.2 System ArchitectureThe ODU is an integrated system and has various types. The structures and working principlesof various types of ODUs are the same.

Block Diagram

Figure 4-1 Block diagram of the ODU

Antennaport

CRTL

TX IF350MHz

RX IF140MHz

Cableport

Synthesizers

VGA

VGA

AMP

LNA

PWR

VGA

Diplexer Multiplexer

O&Muplink

O&Mdownlink

DC

REF

Signal Processing in the Transmit DirectionThe multiplexer splits the signal coming from the IF cable into a 350 MHz IF signal, an O&Muplink signal, and a 48 V DC power signal.

In the transmit direction, the IF signal is processed as follows:

1. The variable gain amplifier (VGA) amplifies the IF signal. The amplification compensatesfor the loss that is caused when the IF cables of different lengths output signals.

The VGA also monitors the voltage of the input signal. When the voltage of the input signalis very low, the corresponding alarm is generated.

2. Through the up-conversion, filtering, and amplification, the IF signal is converted into theRF signal and then sent to the AMP amplifier unit.

3. The AMP amplifies the RF signal (the output power of the signal can be controlled by theIDU software).

4. After the amplification, the RF signal is sent to the antenna through the diplexer.

The O&M uplink signal is a 5.5 MHz ASK-modulated signal and is demodulated in the CTRLcontrol unit.

The 48 V DC power signal is sent to the PWR power unit where the secondary power supplyof a different voltage is generated and provided to the modules of the ODU.

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Signal Processing in the Receive DirectionIn the diplexer, the receive RF signal is separated from the antenna signal. The RF signal isamplified in the low noise amplifier (LNA). Through the down-conversion, filtering, andamplification, the RF signal is converted into the 140 MHz IF signal and then sent to themultiplexer.

The O&M downlink signal is modulated under the ASK scheme in the CTRL unit. The 10 MHzsignal is generated through the modulation and sent to the multiplexer. The CTRL unit alsodetects the receive signal level through the RSSI detection circuit and provides the RSSIinterface.

The IF signal and the O&M downlink signal are combined in the multiplexer and then sent tothe IDU through the IF cable.

4 ODUOptiX RTN 600 Radio Transmission System

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5 Equipment SoftwareAbout This Chapter

This chapter describes the architecture and components of the OptiX RTN 600 software package.

5.1 Software ArchitectureThe software package of the OptiX RTN 600 contains the NMS software, NE software, and

board softwa re.

5.2 NMS Sof twareHuawei prov ides a transport network management solution that meets the requirements of thetelecommuni cation management network (TMN) for managing all the OptiX RTN 600 productsand OptiX se ries optical trans mission products in the network.

5.3 NE Softw areThe NE softw are manages, monitors, and controls the running status of an NE. Through the NEsoftware, the NMS communicates with the boards, and control and manage the NE.

5.4 Board So ftwareThe board sof tware manages and controls the running status of the ODU and all the boards exceptfor the SCC o f the IDU.

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The IDU 605 has no independent board software. The board software of the IDU 605, in theform of modules, is integrated with the NE software and runs in the CPU of the SCC board.

The ODU is considered as a logical board. The board software of the ODU that runs on the SCC board manages the ODU through the O&M channel between the IDU and the ODU.

OptiX RTN 600 Radio Transmission SystemProduct Description 5 Equipment Software


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6 Networking About This Chapter

The OptiX RTN 600 supports various networking modes to apply to different scenarios. Thischapter describes common networking modes of the OptiX RTN 600 according to different typesof IDUs that are used.

6.1 IDU 605 NetworkingThe IDU 605 is applied in a point-to-point network or at terminal nodes in a radio transmissionnetwork.

6.2 IDU 610 NetworkingThe networki ng mode of the IDU 610 is the same as the networking mode of the IDU 605, thatis, the IDU 61 0 is applied in a point-to-point network or at terminal nodes in a radio transmissionnetwork. The difference is that the IDU 610 can provide more microwave work modes andservice interf aces.

6.3 IDU 620 NetworkingIn addition to supporting the networking modes of the IDU 605 and IDU 610, the IDU 620 can

be applied in the networks that adopt ba sic topologies including the chain network, tree network,fiber ring network, microwave ring network, and hybrid ring network, and in more complicatednetworks.

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6.1 IDU 605 Networking

The IDU 605 is applied in a point-to-point network or at terminal nodes in a radio transmissionnetwork.

6.1.1 Point-to-Point Networking In this networking mode, the services between two nodes are transported over microwave. Thisnetworking mode is also called the single-hop networking mode.

In a point-to-point network, you can use the IDU 605 1A or IDU 605 1B that provides 1+0 non- protection configuration for the microwave services, or you can use the IDU 605 2B that provides1+1 protection configuration for the microwave services.

Figure 6-1 Point-to-point networking

OptiX RTN 600(IDU 605)


NOTE

In a point-to-point network, you can replace the IDU 605 with the IDU 610 or IDU 620 if the IDU 605 cannotmeet the requirements of the microwave link attributes or service interfaces.

6.1.2 Terminal Stations in a Radio Transmission NetworkServices can be transmitted between the NE that uses the IDU 605 and the NE that uses the IDU620 through microwave. Therefore, the NE that uses the IDU 605 can function as the terminalstation of a radio transmission network and construct the last hop together with the NE that usesthe IDU 620.

Figure 6-2 Terminal stations in a radio transmission network

Radio transmissionnetwork



NOTE

In a

product description(v100r002_03)

Documents