rtn 980 product description

OptiX RTN 980 Radio Transmission System V100R003C00 Product Description

Issue 01

Date 2010-10-30

HUAWEI TECHNOLOGIES CO., LTD.

Issue 01 (2010-10-30) Huawei Proprietary and Confidential Copyright Huawei Technologies Co., Ltd. i

Copyright Huawei Technologies Co., Ltd. 2010. All rights reserved. No part of this document may be reproduced or transmitted in any form or by any means without prior written 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 respective holders. Notice The purchased products, services and features are stipulated by the contract made between Huawei and the customer. All or part of the products, services and features described in this document may not be within 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 or representations of any kind, either express or implied. The information in this document is subject to change without notice. Every effort has been made in the preparation of this document to ensure accuracy of the contents, but all statements, information, and recommendations in this document do not constitute the warranty of any kind, express or implied.

Huawei Technologies Co., Ltd.

Address: Huawei Industrial Base Bantian, Longgang Shenzhen 518129 People's Republic of China

Website: http://www.huawei.com

Email: [email protected]

OptiX RTN 980 Radio Transmission System Product Description Contents

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iii

Contents

1 Introduction.................................................................................................................................1-1 1.1 Network Application .....................................................................................................................................1-1 1.2 Components...................................................................................................................................................1-3 1.3 Radio Link Forms .........................................................................................................................................1-7

2 Functions and Features .............................................................................................................2-1 2.1 Microwave Types ..........................................................................................................................................2-2

2.1.1 SDH/PDH Microwave .........................................................................................................................2-3 2.1.2 Hybrid/Packet Integrated IP Microwave..............................................................................................2-4

2.2 Modulation Strategy......................................................................................................................................2-5 2.2.1 Fixed Modulation.................................................................................................................................2-6 2.2.2 Adaptive Modulation ...........................................................................................................................2-6

2.3 RF Configuration Modes...............................................................................................................................2-8 2.4 Capacity ........................................................................................................................................................2-8

2.4.1 Air Interface Capacity ..........................................................................................................................2-8 2.4.2 Cross-Connect Capacity.......................................................................................................................2-9 2.4.3 Switching Capacity ..............................................................................................................................2-9

2.5 Interfaces.......................................................................................................................................................2-9 2.5.1 Service Interfaces...............................................................................................................................2-10 2.5.2 Management and Auxiliary Interfaces ...............................................................................................2-11

2.6 Cross-Polarization Interference Cancellation..............................................................................................2-12 2.7 Automatic Transmit Power Control.............................................................................................................2-13 2.8 MPLS/PWE3 Function................................................................................................................................2-13 2.9 Ethernet Service Processing Capability.......................................................................................................2-14 2.10 QoS............................................................................................................................................................2-15 2.11 Clock Features...........................................................................................................................................2-16 2.12 Protection Capability.................................................................................................................................2-17 2.13 Network Management ...............................................................................................................................2-18 2.14 Easy Installation ........................................................................................................................................2-19 2.15 Easy Maintenance .....................................................................................................................................2-20 2.16 Energy Saving ...........................................................................................................................................2-21 2.17 Environmental Protection..........................................................................................................................2-21

3 Product Structure........................................................................................................................3-1

Contents OptiX RTN 980 Radio Transmission System

Product Description

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3.1 System Architecture ......................................................................................................................................3-1 3.2 Hardware Structure .......................................................................................................................................3-3

3.2.1 IDU ......................................................................................................................................................3-3 3.2.2 ODU.....................................................................................................................................................3-6

3.3 Software Structure.........................................................................................................................................3-8 3.3.1 NMS Software .....................................................................................................................................3-8 3.3.2 IDU Software.......................................................................................................................................3-8 3.3.3 ODU Software .....................................................................................................................................3-9

3.4 Service Signal Processing Flow ....................................................................................................................3-9 3.4.1 SDH/PDH Microwave .........................................................................................................................3-9 3.4.2 Hybrid Microwave .............................................................................................................................3-11 3.4.3 Packet Microwave..............................................................................................................................3-14

4 Networking and Applications .................................................................................................4-1 4.1 Typical Networking Modes ...........................................................................................................................4-1

4.1.1 Multi-directional Nodal Convergence..................................................................................................4-1 4.1.2 Large-Capacity Microwave Convergence Ring ...................................................................................4-2 4.1.3 Upstream Networking..........................................................................................................................4-4

4.2 Feature Application (MPLS Packet Service).................................................................................................4-5 4.2.1 CES Services........................................................................................................................................4-6 4.2.2 ATM/IMA Services ..............................................................................................................................4-9 4.2.3 Ethernet Services ...............................................................................................................................4-10

5 Network Management System ................................................................................................5-1 5.1 Network Management Solution.....................................................................................................................5-1 5.2 Web LCT.......................................................................................................................................................5-2 5.3 U2000............................................................................................................................................................5-3

6 Technical Specifications ...........................................................................................................6-1 6.1 RF Performance ............................................................................................................................................6-1

6.1.1 Microwave Work Modes......................................................................................................................6-2 6.1.2 Frequency Band ...................................................................................................................................6-7 6.1.3 Transceiver Performance....................................................................................................................6-10 6.1.4 IF Performance...................................................................................................................................6-15 6.1.5 Baseband Signal Processing Performance of the Modem..................................................................6-16

6.2 Interface Performance .................................................................................................................................6-16 6.2.1 SDH Optical Interface Performance ..................................................................................................6-17 6.2.2 E1 Interface Performance...................................................................................................................6-18 6.2.3 Ethernet Interface Performance..........................................................................................................6-18 6.2.4 Auxiliary Interface Performance ........................................................................................................6-20

6.3 Clock Timing and Synchronization Performance........................................................................................6-22 6.4 Integrated System Performance...................................................................................................................6-22

OptiX RTN 980 Radio Transmission System Product Description Figures


v

Figures

Figure 1-1 Microwave transmission solution provided by the OptiX RTN 980.................................................1-3

Figure 1-2 IDU 980 ............................................................................................................................................1-4

Figure 1-3 Direct mounting................................................................................................................................1-6

Figure 1-4 Separate mounting ............................................................................................................................1-7

Figure 2-1 SDH microwave................................................................................................................................2-3

Figure 2-2 PDH microwave................................................................................................................................2-4

Figure 2-3 Hybrid/Packet integrated IP microwave ...........................................................................................2-5

Figure 2-4 Illumination of adaptive modulation.................................................................................................2-7

Figure 3-1 Block diagram...................................................................................................................................3-2

Figure 3-2 IDU slot layout .................................................................................................................................3-4

Figure 3-3 Block diagram of the ODU...............................................................................................................3-7

Figure 3-4 Software structure.............................................................................................................................3-8

Figure 3-5 Service signal processing flow of the SDH/PDH microwave...........................................................3-9

Figure 3-6 Service signal processing flow of the Hybrid microwave ..............................................................3-11

Figure 3-7 Service signal processing flow .......................................................................................................3-14

Figure 4-1 Multi-directional Nodal Convergence ..............................................................................................4-2

Figure 4-2 Large-capacity convergence ring ......................................................................................................4-3

Figure 4-3 Upstream ring network of TDM services .........................................................................................4-4

Figure 4-4 Upstream ring network of Ethernet services.....................................................................................4-5

Figure 4-5 Upstream ring network of MPLS services........................................................................................4-5

Figure 4-6 Example of CES services..................................................................................................................4-7

Figure 4-7 Compression of idle 64 kbit/s timeslots in TDM E1 signals.............................................................4-8

Figure 4-8 Retiming synchronization mode of CES service clocks ...................................................................4-8

Figure 4-9 Adaptive synchronization mode of CES service clocks....................................................................4-9

Figure 4-10 Example of ATM/IMA services ......................................................................................................4-9

Figure 4-11 Example of E-Line services ..........................................................................................................4-11

Figures OptiX RTN 980 Radio Transmission System

Product Description

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Figure 5-1 Network management solution to the transmission network ............................................................5-2

OptiX RTN 980 Radio Transmission System Product Description Tables


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Tables

Table 1-1 Introduction of the IDU 980 ...............................................................................................................1-4

Table 1-2 RTN 600 ODUs supported by the OptiX RTN 980 ............................................................................1-5

Table 1-3 RTN XMC ODUs supported by the OptiX RTN 980 .........................................................................1-5

Table 1-4 Radio link forms of the OptiX RTN 980 ............................................................................................1-7

Table 2-1 RF configuration modes .....................................................................................................................2-8

Table 2-2 Air interface capacity..........................................................................................................................2-9

Table 2-3 Types and number of the service interface supported on the system control, switching, and timing board .................................................................................................................................................................2-10

Table 2-4 Type and number of the service interfaces supported by adding service interface boards ...............2-10

Table 2-5 Type and number of management and auxiliary interfaces ..............................................................2-11

Table 2-6 Auxiliary services or paths provided by each microwave interface..................................................2-12

Table 2-7 MPLS support capability ..................................................................................................................2-13

Table 2-8 PWE3 support capability ..................................................................................................................2-13

Table 2-9 Ethernet service processing capability (System control, switching and timing board).....................2-14

Table 2-10 QoS features ...................................................................................................................................2-16

Table 2-11 Clock features .................................................................................................................................2-16

Table 2-12 Protection schemes .........................................................................................................................2-17

Table 2-13 Outband DCN information exchange schemes...............................................................................2-18

Table 2-14 Inband DCN information exchange schemes .................................................................................2-19

Table 3-1 Functional unit....................................................................................................................................3-2

Table 3-2 List of IDU boards..............................................................................................................................3-4

Table 3-3 Service signal processing flow of the SDH/PDH microwave in the transmit direction......................3-9

Table 3-4 Service signal processing flow of the SDH/PDH microwave in the receive direction .....................3-10

Table 3-5 Service signal processing flow of the Hybrid microwave in the transmit direction .........................3-12

Table 3-6 Service signal processing flow of the Hybrid microwave in the receive direction...........................3-13

Table 3-7 Service signal processing flow in the transmit direction ..................................................................3-14

Table 3-8 Service signal processing flow in the receive direction....................................................................3-15

Tables OptiX RTN 980 Radio Transmission System

Product Description

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Table 6-1 SDH/PDH microwave work modes (IF1 board).................................................................................6-2

Table 6-2 SDH/PDH microwave work modes (ISU2/ISX2 board) ....................................................................6-2

Table 6-3 Integrated IP microwave work modes (IFU2 board) ..........................................................................6-3

Table 6-4 Integrated IP microwave work modes (IFX2 board) ..........................................................................6-4

Table 6-5 Integrated IP microwave work modes (ISU2 board, Native E1 + Ethernet service) ..........................6-4

Table 6-6 Integrated IP microwave work modes (ISX2 board, Native E1 + Ethernet service) ..........................6-5

Table 6-7 Integrated IP microwave work modes (ISU2 board, Native STM-1 + Ethernet service) ...................6-6

Table 6-8 Integrated IP microwave work modes (ISX2 board, Native STM-1 + Ethernet service) ...................6-7

Table 6-9 Frequency Band (SP ODU) ................................................................................................................6-8

Table 6-10 Frequency band (SPA ODU).............................................................................................................6-8

Table 6-11 Frequency band (HP ODU)...............................................................................................................6-9

Table 6-12 Frequency band (XMC-2 ODU).......................................................................................................6-9

Table 6-13 Frequency band (LP ODU).............................................................................................................6-10

Table 6-14 Frequency band (XMC-1 ODU).....................................................................................................6-10

Table 6-15 Transceiver Performance (SP ODU)...............................................................................................6-10

Table 6-16 Transceiver performance (SPA ODU) ............................................................................................6-11

Table 6-17 Transceiver performance (HP ODU) ..............................................................................................6-12

Table 6-18 Transceiver performance (XMC-2 ODU).......................................................................................6-13

Table 6-19 Transceiver performance (LP ODU)...............................................................................................6-14

Table 6-20 Transceiver performance (XMC-1 ODU).......................................................................................6-15

Table 6-21 IF performance ...............................................................................................................................6-16

Table 6-22 Baseband signal processing performance of the modem................................................................6-16

Table 6-23 STM-4 optical interface performance.............................................................................................6-17

Table 6-24 STM-1 optical interface performance.............................................................................................6-18

Table 6-25 E1 interface performance................................................................................................................6-18

Table 6-26 Performance of the GE optical interface.........................................................................................6-19

Table 6-27 GE electric interface performance ..................................................................................................6-19

Table 6-28 FE electric interface performance...................................................................................................6-20

Table 6-29 Orderwire interface performance....................................................................................................6-20

Table 6-30 Synchronous data interface performance........................................................................................6-21

Table 6-31 Asynchronous data interface performance......................................................................................6-21

Table 6-32 Wayside service interface performance ..........................................................................................6-21

Table 6-33 Clock timing and synchronization performance .............................................................................6-22

OptiX RTN 980 Radio Transmission System Product Description Tables


ix

Table 6-34 Dimensions.....................................................................................................................................6-22

Table 6-35 Typical weight ................................................................................................................................6-22

Table 6-36 Typical power consumption............................................................................................................6-23

Table 6-37 Power Supply..................................................................................................................................6-23

Table 6-38 Environment performance ..............................................................................................................6-24

OptiX RTN 980 Radio Transmission System Product Description 1 Introduction


1-1

1 Introduction About This Chapter

The OptiX RTN 980 is one of the series products of the OptiX RTN 900 radio transmission system.

1.1 Network Application

The OptiX RTN 900 is a new generation split microwave transmission system developed by Huawei. It can provide a seamless microwave transmission solution for a mobile communication network or private network.

1.2 Components

The OptiX RTN 980 adopts a split structure. The system consists of the IDU 980 and the ODU. An ODU is connected to an IDU through an IF cable.

1.3 Radio Link Forms

The OptiX RTN 980 provides the radio links of different forms by flexibly configuring different IF boards and ODUs to meet the requirements of different microwave application scenarios.

1.1 Network Application The OptiX RTN 900 is a new generation split microwave transmission system developed by Huawei. It can provide a seamless microwave transmission solution for a mobile communication network or private network.

OptiX RTN 900 Product Family The OptiX RTN 900 products are available in three types: OptiX RTN 910, OptiX RTN 950, and OptiX RTN 980. The users can choose an appropriate type based on the actual requirements.

z The IDU of the OptiX RTN 910 is 1U high and supports one or two IF boards. z The IDU of the OptiX RTN 950 is 2U high and supports one to six IF boards. z The IDU of the OptiX RTN 980 is 5U high and supports one to fourteen IF boards.

1 Introduction OptiX RTN 980 Radio Transmission System

Product Description

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The OptiX RTN 900 series products support the same IF boards and service interface boards.

The OptiX RTN 900 products provide several types of service interfaces and facilitate installation and flexible configuration. It can provide a solution that is integrated with the TDM microwave, Hybrid microwave, and Packet microwave based on the network requirements. It supports the smooth upgrade from the TDM microwave to the Hybrid microwave, and from the Hybrid microwave to the Packet microwave. The solution can evolve based on the service changes that occur due to radio mobile network evolution. Thus, this solution can meet the transmission requirements of not only 2G and 3G networks, but also future LTE and 4G networks.

OptiX RTN 980 Figure 1-1 shows the microwave transmission solution that is provided by the OptiX RTN 980.

The OptiX RTN 980 is the large-capacity nodal microwave equipment at the convergence layer, supports the convergence of up to 14 microwave links, and supports multiple protection schemes.Figure 1-1 shows the microwave transmission solution that is provided by the OptiX RTN 980.



1-3

Figure 1-1 Microwave transmission solution provided by the OptiX RTN 980

TDM Network(SDH)

STM-1/4STM-1/4

GE

OptiX RTN 980 BSCRNCOptiX RTN 910/950

Radio link Cable/fiber

Regionalbackhaulnetwork

Ethernet Network(Metro)

Raido trassmission network

FE/GE

FE/GE

STM-1/4

ATM

FE/GE

Packet Network(PTN)

z In the solution, the OptiX RTN 980 can be connected to the RNC and BSC directly or through the

regional backhaul network. z The OptiX RTN 980 provides a wide range of interfaces and service bearer technologies to adapt to

the regional backhaul network. The regional backhaul network can be a time-division multiplexing (TDM) network or packet switching network (PSN). The OptiX RTN 980 supports the pseudo wire emulation edge-to-edge (PWE3) technology, and therefore TDM and ATM services can be backhauled through a PSN.

1.2 Components The OptiX RTN 980 adopts a split structure. The system consists of the IDU 980 and the ODU. An ODU is connected to an IDU through an IF cable.


Product Description


Issue 01 (2010-10-30)

IDU 980 The IDU 980 is the indoor unit of an OptiX RTN 980 system. It accesses services, performs multiplexing/demultiplexing and IF processing of the services, and provides system control and communication function.

Table 1-1 lists the basic features of the IDU 980.

Table 1-1 Introduction of the IDU 980

Item Performance

Chassis height 5U

Pluggable Supported

Number of microwave directions

1 to 14

RF configuration mode 1+0 non-protection configuration N+0 non-protection configuration (N 8) 1+1 protection configuration N+1 protection configuration (N 7) XPIC configuration

Figure 1-2 IDU 980



1-5

ODU The ODU is the outdoor unit of the OptiX RTN 900. It performs frequency conversion and amplification of signals.

Unlike the other frequency bands that use 14 MHz, 28 MHz, or 56 MHz channel spacing, the 18 GHz frequency band uses 13.75 MHz, 27.5 MHz, or 55 MHz channel spacing correspondingly.

Table 1-2 RTN 600 ODUs supported by the OptiX RTN 980

Description Item

Standard Power ODU

High Power ODU Low Capacity for PDH ODU

ODU type SP, SPA HP LP

Frequency band 7/8/11/13/15/18/23/26/38 GHz (SP ODU) 6/7/8/11/13/15/18/23 GHz (SPA ODU)

7/8/10/10.5/11/13/15/18/23/26/28/32/38 GHz

7/8/11/13/15/18/23 GHz

Microwave modulation mode

QPSK/16QAM/32QAM/64QAM/128QAM/256QAM (SP) QPSK/16QAM/32QAM/64QAM/128QAM (SPA)

QPSK/16QAM/32QAM/64QAM/128QAM/256QAM

QPSK/16QAM

Channel spacing 3.5/7/14/28 MHz 7/14/28/40/56 MHz (7/8/10/11/13/15/18/23/26/28/32/38 GHz) 7/14/28 MHz (10.5 GHz)

3.5/7/14/28 MHz

Table 1-3 RTN XMC ODUs supported by the OptiX RTN 980

Description Item


ODU type XMC-2 XMC-1

Frequency band 7/8/13/15/18/23 GHz 7/8/13/15/18/23 GHz

Microwave modulation mode

QPSK/16QAM/32QAM/64QAM/128QAM/256QAM

QPSK/16QAM


Product Description


Issue 01 (2010-10-30)

Description Item


Channel spacing 7/14/28/56 MHz (7/13/15/18/23 GHz) 7/14/28/40/56 MHz (8 GHz)

3.5/7/14/28 MHz

There are two methods of mounting the ODU and the antenna: direct mounting and separate mounting.

z The direct mounting method is normally adopted when a small-diameter and single-polarized antenna is used. In this situation, if one ODU is configured for one antenna, the ODU is directly mounted at the back of the antenna. If two ODUs are configured for one antenna, an RF signal combiner/splitter (hereinafter referred to as a hybrid coupler) must be mounted to connect the ODUs to the antenna. Figure 1-3 shows the direct mounting method.

Figure 1-3 Direct mounting

z The separate mounting method is adopted when a double-polarized antenna or big-diameter and single-polarized antenna is used. Figure 1-4 shows the separate method. In this situation, a hybrid coupler can be mounted. That is, two ODUs share one feed boom.



1-7

Figure 1-4 Separate mounting

The OptiX RTN 980 provides an entire frequency band antenna solution, and supports the single-polarized antenna and dual-polarized antenna with a diameter of 0.3 m to 3.7 m and the corresponding feeder system.

1.3 Radio Link Forms The OptiX RTN 980 provides the radio links of different forms by flexibly configuring different IF boards and ODUs to meet the requirements of different microwave application scenarios.

Table 1-4 Radio link forms of the OptiX RTN 980

Radio Link Form Type of the Control, Switching, and Timing Board

Type of the IF Board

Type of the ODU

Low-capacity PDH microwave

CSHN IF1 Low capacity for PDH ODU

SDH/PDH microwave

CSHN IF1 Standard power ODU or high power ODU

High-capacity SDH microwave

CSHN ISU2 Standard power ODU or high power ODU


Product Description


Issue 01 (2010-10-30)

Radio Link Form Type of the Control, Switching, and Timing Board


Type of the ODU

High-capacity SDH microwave supporting XPIC

CSHN ISX2 Standard power ODU or high power ODU

Hybrid/Packet microwave

CSHN IFU2/ISU2 Standard power ODU or high power ODU

Hybrid/Packet microwave supporting XPIC

CSHN IFX2/ISX2 Standard power ODU or high power ODU

OptiX RTN 980 Radio Transmission System Product Description 2 Functions and Features


2-1

2 Functions and Features About This Chapter

The OptiX RTN 980 provides plentiful functions and features to ensure the quality and efficiency of service transmission.

2.1 Microwave Types

The microwave type is determined by the IF board and the configured working mode.

2.2 Modulation Strategy

The SDH/PDH microwave supports fixed modulation, whereas the Hybrid/Packet microwave supports fixed modulation and adaptive modulation.

2.3 RF Configuration Modes

The OptiX RTN 980 supports

2.4 Capacity

The OptiX RTN 980 has a high capacity.

2.5 Interfaces

The OptiX RTN 980 features multiple interface types.

2.6 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 wireless link capacity over the same channel.

2.7 Automatic Transmit Power Control

Automatic transmit power control (ATPC) enables the output power of the transmitter to automatically trace the level fluctuation at the receive end within the ATPC control range. This reduces the interference with neighboring systems and residual BER.

2.8 MPLS/PWE3 Function

The OptiX RTN 980 adopts the MPLS that is optimized for the telecom bearer network as the packet forwarding mechanism to implement the packet transmission of carrier-class services. The OptiX RTN 980 adopts the PWE3 technology as the service bearer technology to implement the MPLS network access of various types of services.

2 Functions and Features OptiX RTN 980 Radio Transmission System

Product Description


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2.9 Ethernet Service Processing Capability

The OptiX RTN 980 provides the powerful Ethernet service processing capability.

2.10 QoS

The OptiX RTN 980 provides improved quality of service (QoS) capabilities and supports the following eight per-hop behaviors (PHBs): BE, AF1, AF2, AF3, AF4, EF, CS6, and CS7. Thus, the network carriers can offer various QoS levels of service guarantees and build an integrated network to carry data, voice, and video services.

2.11 Clock Features

The clock features of the OptiX RTN 980 meet the requirements for transporting the clock of the mobile communication network and provide the complete clock protection mechanism.

2.12 Protection Capability

The OptiX RTN 980 provides complete protection schemes.

2.13 Network Management

The OptiX RTN 980 supports multiple network management (NM) modes, and provides complete NM information exchange schemes.

2.14 Easy Installation

The OptiX RTN 980 supports several installation modes. Thus, the installation of the equipment is flexible and convenient.

2.15 Easy Maintenance

The OptiX RTN 980 provides several maintenance features. Thus, the cost of equipment maintenance is effectively reduced.

2.16 Energy Saving

The OptiX RTN 980 adopts various technologies to reduce equipment energy.

2.17 Environmental Protection

The OptiX RTN 980 is designed according to the requirements of environmental protection. The product complies with RoHS directive.

2.1 Microwave Types The microwave type is determined by the IF board and the configured working mode.

2.1.1 SDH/PDH Microwave

The SDH microwave refers to the microwave that transmits SDH services. The PDH microwave refers to the microwave that transmits only the PDH services (mainly, the E1 services).

2.1.2 Hybrid/Packet Integrated IP Microwave

IP microwave can transmit packet services. The OptiX RTN 980 can transmit any or several of the following three types of services: Native TDM, Native Ethernet, and packet services encapsulated through PWE3 based on the software configuration of the equipment. Therefore, the equipment supports a smooth upgrade from Hybrid microwave to Packet microwave.



2-3

2.1.1 SDH/PDH Microwave The SDH microwave refers to the microwave that transmits SDH services. The PDH microwave refers to the microwave that transmits only the PDH services (mainly, the E1 services).

The IF1 board can work in the TU-12-based PDH microwave mode or the STM-1-based SDH microwave mode. The ISU/ISX2 board can work in the SDH mode and support one STM-1 or two STM-1s. The ISU/ISX2 board transmits two STM-1s in contiguous concatenation mode. That is, the VC-4 payloads of two STM-1s are transmitted, but only the regeneration section (RS) overheads and multiplex section (MS) overheads of first STM-1 service are transmitted.

SDH Microwave Unlike the conventional SDH microwave equipment, the OptiX RTN 980 has a built-in MADM. The MADM grooms services to the microwave port through cross-connections, maps the services into the STM-1-based or 2STM-1-based microwave frames, and then transmits the STM-1-based or STM-2-based microwave frames. Thus, the services can be groomed flexibly and seamless convergence between the optical network and the microwave network is achieved.

Figure 2-1 SDH microwave

ODU

E1

IDU

MADM

SDH radioSDH

OH

OH

PDH Microwave Unlike the conventional PDH microwave equipment, the OptiX RTN 980 has a built-in MADM. The MADM grooms the E1 services to the microwave port for further transmission. Thus, the services can be groomed flexibly and seamless convergence between the optical network and the microwave network is achieved.


Product Description


Issue 01 (2010-10-30)

Figure 2-2 PDH microwave

ODU

E1

IDU

OH MADM

PDH radioSDH

2.1.2 Hybrid/Packet Integrated IP Microwave IP microwave can transmit packet services. The OptiX RTN 980 supports the Hybrid/Packet integrated IP microwave.

Universal IF boards IFU2/IFX2/ISU2/ISX2 support Hybrid/Packet Integrated IP microwave.

IP microwave can transmit packet services and support the AM function. Traditional IP microwave is divided into two different types: Hybrid microwave and Packet microwave.

z Hybrid microwave: Native TDM services and Native Ethernet services can be transmitted through the air interface.

z Packet microwave: TDM services, ATM services, and Ethernet services after PWE3 encapsulation are transmitted through the air interface.

The OptiX RTN 980 supports the Hybrid/Packet integrated IP microwave (integrated IP microwave), and can transmit Native TDM and packet services at the same time. The packet services transmitted can be native Ethernet services or MPLS/PWE3 services, based on the software configuration of the equipment. Therefore, the equipment can support Hybrid and Packet microwave at the same time, and support a smooth upgrade from Hybrid microwave to Packet microwave.

The OptiX RTN 980 is embedded with dual service planes: TDM service processing plane and packet service processing plane. TDM services and packet services can be flexibly transmitted over the integrated IP microwave, as shown in Figure 2-3.

z TDM service processing plane Performs cross-connections on the incoming TDM services (E1 services or STM-1 services), and then transmits the services to the microwave ports.

z Packet service processing plane Performs PWE3 emulation on the incoming services (E1 services, ATM/IMA services, and Ethernet services) and encapsulates them into the MPLS packets, and transmits the Ethernet frames that bear the MPLS packets to the microwave ports. Ethernet services are directly transmitted to the microwave ports in Native mode after Layer 2 switching.



2-5

Figure 2-3 Hybrid/Packet integrated IP microwave

ODU

IDU

TDMcross-connect

matrixE1

STM-1/4

IMA E1

FE/GE

Packetswitching

PWE3

Layer2Proccess

Hybrid radio

Mixed service in evolution

Pure Packet radio

The Integrated IP radio supports smooth upgrade

Native Ehternet

Native TDM channel (E1 or STM-1)

MPLStunnel

ATM PWE3

ETHPWE3

Native TDM channel (E1 or STM-1)

TDM PWE3 (CES E1)

MPLStunnel

ATM PWE3

TDM PWE3 (CES E1)

ETHPWE3

The Hybrid/Packet integrated IP microwave has the following characteristics:

z Can transmit the TDM service and packet service over microwave radio link. z Supports the AM function. E1 services and packet services can be configured with

priority. When AM is switched to the reference mode, the services with higher priority can be transmitted with preference.

2.2 Modulation Strategy The SDH/PDH microwave supports fixed modulation, whereas the Hybrid/Packet microwave supports fixed modulation and adaptive modulation.

2.2.1 Fixed Modulation

Fixed modulation refers to a modulation strategy wherein a modulation mode is adopted invariably on a running radio link.

2.2.2 Adaptive Modulation


Product Description


Issue 01 (2010-10-30)

Adaptive modulation (AM) is a technology wherein the modulation mode can be adjusted automatically based on channel quality.

2.2.1 Fixed Modulation Fixed modulation refers to a modulation strategy wherein a modulation mode is adopted invariably on a running radio link.

When the OptiX RTN 980 uses the fixed modulation strategy, you can set the modulation mode and the channel spacing through the software. Fixed modulation provides specific air-interface bandwidth.

z The SDH/PDH radio link adopts the fixed modulation mode. The microwave work modes are distinguished by mode numbers. Different mode numbers represent different modulation modes and channel spacings.

z The Hybrid/packet radio link supports the fixed modulation mode. You can set a variety of combinations of modulation modes and channel spacings.

2.2.2 Adaptive Modulation Adaptive modulation (AM) is a technology wherein the modulation mode can be adjusted automatically based on channel quality.

When the AM technology is adopted, in the case of the same channel spacing, the microwave service bandwidth varies according to the modulation mode. The higher the modulation efficiency, the higher the bandwidth of the transmitted services.

z When the channel quality is good (such as on days when weather conditions are favorable), the equipment adopts a higher modulation mode to transmit more user services. In this manner, the transmission efficiency and the spectrum utilization of the system are improved.

z When the channel quality is degraded (such as on days when there is a storm or fog), the equipment adopts a lower modulation mode to transmit only the services with a higher priority within the available bandwidth and to discard the services with a lower priority. In this manner, the anti-interference capability of the radio link is improved and the link availability of the services with a higher priority is ensured.

The Hybrid/Packet microwave equipment supports the AM technology, in which the priorities of E1 services and packet services can be set. With the AM technology adopted, service transmission is controlled based on the service bandwidth and QoS policy corresponding to the current modulation scheme. The service with the highest priority is transmitted with preference.

When the Hybrid microwave equipment transmits STM-1 services and packet services at the same time, STM-1 services have the highest priority and their transmission is guaranteed.

z Priorities of E1 services The priorities of E1 services are assigned based on the number of E1 services that each modulation mode can transmit. When a shift between modulation modes occurs, only the E1 services whose number is specified in the new modulation mode can be transmitted and the excess E1 services are discarded.

z Packet service priority Through the QoS technology, packet services are scheduled to queues with different priorities. Then, the services in different queues are transmitted to the microwave port after computation of the SP or WRR algorithm. When a shift between modulation modes



2-7

occurs, certain queues may be congested due to insufficient capacity at the air interface. In this case, certain services or all the services in these queues are discarded.

Figure 2-4 shows the change in services brought by the AM technology. The orange part indicates E1 services. The blue part indicates Packet services. The closer to the edge, the lower the service priority. Under all channel conditions, the service capacity varies according to the modulation mode. When the channel is in bad conditions, the service with a lower priority is discarded.

Figure 2-4 Illumination of adaptive modulation

ChannelCapability

E1 Services

256QAM

32QAM

QPSK

256QAM

128QAM

32QAM

128QAM

64QAM

64QAM

16QAM

16QAM

EthernetServices

The AM technology adopted by the OptiX RTN 980 has the following features:

z The AM technology can use the QPSK, 16QAM, 32QAM, 64QAM, 128QAM, and 256QAM modulation mode.

z The lowest modulation mode (also called "reference mode") and the highest modulation mode (also called "nominal mode") actually used by the AM can be configured.

z When the modulation modes of AM are switched, the transmit frequency, receive frequency, and channel spacing do not change.

z When the modulation modes of AM are switched, the step-by-step switching mode is adopted.

z AM switching is a hitless switch. When the AM scheme is downshifted, high-priority services will not be affected due to the mode switching when the low-priority services are discarded. The switching rate meets the requirement of the 100dB/s fast channel fading.


Product Description


Issue 01 (2010-10-30)

2.3 RF Configuration Modes The OptiX RTN 980 supports

Table 2-1 lists the RF link configuration modes that are supported.

Table 2-1 RF configuration modes

Configuration Mode Maximum Number of Configurations

1+0 non-protection configuration 14

1+1 protection configuration (1+1 HSB/FD/SD)

7

N+0 non-protection configuration (N 14) 7

N+1 protection configuration (N 7) 7

XPIC configuration 7

NOTE z 1+0 configuration in N directions is also called Nx(1+0) configuration. z When two radio links in 1+0 non-protection configuration form a microwave ring network, the special

RF configuration (namely, east and west configuration) is formed. On a Hybrid microwave ring network, SNCP can be configured for SDH/PDH services and ERPS can be configured for Ethernet services. On a packet microwave ring network, MPLS APS or PW APS can be configured for packet services.

z PDH microwave does not support N+1 protection or XPIC configuration. z Two XPIC workgroups can form the XPIC 1+1 protection configuration.

2.4 Capacity The OptiX RTN 980 has a high capacity.

2.4.1 Air Interface Capacity

The microwave air interface capacity depends on the IF board, ODU type, and microwave work mode.

2.4.2 Cross-Connect Capacity

The OptiX RTN 980 is embedded with the MADM and provides 128x128 VC-4 higher order cross-connections and VC-12/VC-3 lower order cross-connections equivalent to 32x32 VC-4s.

2.4.3 Switching Capacity

The OptiX RTN 980 has a built-in packet processing platform with the switching capacity of 22 Gbit/s.

2.4.1 Air Interface Capacity The microwave air interface capacity depends on the IF board, ODU type, and microwave work mode.



2-9

Table 2-2 lists the microwave air interface capacities supported by the OptiX RTN 980.

Table 2-2 Air interface capacity

Type of the Radio Link


Maximum Air Interface Capacity

XPIC Configuration

Remarks

PDH IF1 53xE1 Not supported Supports 16xE1s when the low-capacity PDH ODU is used.

SDH IF1 1xSTM-1 Not supported -

ISU2 2xSTM-1 Not supported - SDH

ISX2 2xSTM-1 Supported The XPIC function is provided by using two ISX2 boards.

IFU2 360 to 420 Not supported -

IFX2 360 to 410 Supported The XPIC function is provided by using two IFX2 boards.

ISU2 363 to 447 Not supported -

IP microwave (native Ethernet throughput, Mbit/s)

ISX2 363 to 447 Supported The XPIC function is provided by using two ISX2 boards.

NOTE The XPIC function can double the service capacity of the microwave channel at the same frequency bandwidth.

2.4.2 Cross-Connect Capacity The OptiX RTN 980 is embedded with the MADM and provides 128x128 VC-4 higher order cross-connections and VC-12/VC-3 lower order cross-connections equivalent to 32x32 VC-4s.

2.4.3 Switching Capacity The OptiX RTN 980 has a built-in packet processing platform with the switching capacity of 22 Gbit/s.

2.5 Interfaces The OptiX RTN 980 features multiple interface types.

2.5.1 Service Interfaces


Product Description


Issue 01 (2010-10-30)

The OptiX RTN 980 provides the interfaces that converge SDH services and Ethernet services on the system control, switching, and timing board, and supports more service interfaces of more types.

2.5.2 Management and Auxiliary Interfaces

The OptiX RTN 980 provides the management and auxiliary interfaces through the system control, switching, and timing board and the auxiliary board.

2.5.1 Service Interfaces The OptiX RTN 980 provides the interfaces that converge SDH services and Ethernet services on the system control, switching, and timing board, and supports more service interfaces of more types.

on the OptiX RTN 980, the types and number of service interfaces that the system control, switching, and timing board supports are as shown in Table 2-3.

Table 2-3 Types and number of the service interface supported on the system control, switching, and timing board

Type of the System Control, Switching, and Timing Board

Available Service Interface

Number of Interfaces Available on One Board

GE electrical interface (RJ-45): 10/100/1000BASE-T(X), or GE optical interface (SFP): 1000Base-SX, 1000Base-LX

2 CSHN

STM-4 optical interface (SFP), or STM-1 optical interface (SFP)

2

Table 2-4 lists the type and number of the service interfaces supported by adding service interface boards to the OptiX RTN 980.

Table 2-4 Type and number of the service interfaces supported by adding service interface boards

Type of Service Interface Board

Type of Service Interface Number of Interfaces Provided by One Board

FE electrical interface (RJ-45): 10/100BASE-T(X)

4 EM6T

GE electrical interface (RJ-45): 10/100/1000BASE-T(X)

2

EM6F FE electrical interface (RJ-45): 10/100BASE-T(X)

4



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Type of Service Interface Board

Type of Service Interface Number of Interfaces Provided by One Board

GE electrical interface (RJ-45): 10/100/1000BASE-T(X) or GE optical interface (SFP): 1000Base-SX, 1000Base-LX

2

SP3S 75-ohm or 120-ohm E1 interface

16

SP3D 75-ohm or 120-ohm E1 interface

32

SL1D STM-1 optical interface: Ie-1, S-1.1, L-1.1, and L-1.2

2

ML1 75-ohm or 120-ohm smart E1 interface: supports CES E1, IMA E1, or fractional E1

16

MD1 75-ohm or 120-ohm smart E1 interface: supports CES E1, IMA E1, or fractional E1

32

2.5.2 Management and Auxiliary Interfaces The OptiX RTN 980 provides the management and auxiliary interfaces through the system control, switching, and timing board and the auxiliary board.

Table 2-5 Type and number of management and auxiliary interfaces

Interface Specifications Quantity

External clock interface

Combined 120-ohm 2,048 kbit/s or 2,048 kHz clock input and output interface

1

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

NM serial interface 1

Management interface

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

Orderwire interface 1

RS-232 asynchronous data interface 1

64 kbit/s synchronous data interface 1

Auxiliary interface

Wayside E1 interface 1


Product Description


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Interface Specifications Quantity

Alarm interface Alarm input/output interface Four inputs and two outputs

z The external clock interface and the wayside E1 interface are combined into one physical interface.

This interface can also transparently transmit the DCC bytes, orderwire overhead bytes, and synchronous/asynchronous data overhead bytes. This interface, however, can implement only one function at a time.

z The 64 kbit/s synchronous data interface can also transparently transmit an orderwire byte, but cannot transmit the synchronous data in this case.

z The external clock interface and the management interface are provided by the CSHN board. The auxiliary interface and the alarm interface are provided by the AUX board.

z The table lists the number of external clock and management interfaces that are provided on one CSHN board.

Auxiliary services and NM messages are transmitted by overhead bytes over a radio link. For details, refer to Table 2-6.

Table 2-6 Auxiliary services or paths provided by each microwave interface

Microwave Frame Overhead Service/Message Type

Quantity of Paths

Rate of Path

Asynchronous data service 1 19.2 kbit/s

Synchronous data service 1 64 kbit/s

Orderwire phone service 1 64 kbit/s

Wayside E1 service 1 2048 kbit/s

DCC path 1 64 kbit/s (in the PDH radio link which the capacity is lower than 16xE1) 192 kbit/s (in the SDH radio link or PDH radio link which the capacity is not lower than 16xE1) 192 kbit/s (in the Hybrid/Packet radio link) 192 kbit/s, 576kbit/s, or 768kbit/s (in the SDH radio link)

2.6 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 wireless link capacity over the same channel.



2-13

CCDP transmission adopts both the horizontally polarized wave and the vertically polarized wave on one channel to transmit two channels of signals. The ideal situation of CCDP transmission is that no interference is present between the two orthogonal signals although they are with the same frequency. In this manner, the receiver can easily recover the two signals. In actual engineering conditions, despite the orthogonality of the two signals, interference between the signals inevitably occurs due to cross-polarization discrimination (XPD) of the antenna and channel degradation. To cancel the interference, the XPIC technology is adopted. In XPIC technology, the signals are received in the horizontal and vertical directions. The signals in the two directions are then processed and the original signals are recovered from interfered signals.

2.7 Automatic Transmit Power Control Automatic transmit power control (ATPC) enables the output power of the transmitter to automatically trace the level fluctuation at the receive end within the ATPC control range. This reduces the interference with neighboring systems and residual BER.

2.8 MPLS/PWE3 Function The OptiX RTN 980 adopts the MPLS that is optimized for the telecom bearer network as the packet forwarding mechanism to implement the packet transmission of carrier-class services. The OptiX RTN 980 adopts the PWE3 technology as the service bearer technology to implement the MPLS network access of various types of services.

Table 2-7 MPLS support capability

Item Specifications

Numbers of MPLS tunnels

Supports a maximum of 1024 tunnels.

MPLS OAM Supported. Complies with ITU-T Y.1710 and ITU-T Y.1711.

MPLS protection Supports tunnel 1:1 protection.

Numbers of PWs Supports a maximum of 1024 PWs.

PW OAM Supported. Complies with ITU-T Y.1710 and ITU-T Y.1711.

PW protection Supports PW 1:1 protection.

QoS Supports MPLS QoS in DiffServ mode.

Table 2-8 PWE3 support capability

Item Specifications

Emulation mode Supports the SAToP emulation and CESoPSN emulation of E1 services.

TDM PWE3

Packet loading time 125 s to 5000 s


Product Description


Issue 01 (2010-10-30)

Item Specifications

Jitter compensation buffering time

375 s to 16000 s

Mapping mode Supports one-to-one and N-to-one VCC/VPC mapping.

Maximum number of concatenated cells

31

ATM PWE3

Cell concatenation wait time

125 s to 50000 s

Encapsulation format

Supports direct encapsulation and encapsulation by adding tags.

ETH PWE3

Service type Supports E-Line services.

2.9 Ethernet Service Processing Capability The OptiX RTN 980 provides the powerful Ethernet service processing capability.

Table 2-9 Ethernet service processing capability (System control, switching and timing board)

Item Performance

Ethernet service type

E-Line and E-LAN

Maximum frame length

1518 bytes to 9600 bytes

VLAN z Adds, deletes, and switches VALN tags that comply with IEEE 802.1q/p, and forwards packets based on VLAN tags.

z Processes packets based on the port tag attribute (Tag/Hybrid/Access).

z The VLAN ID ranges from 1 to 4094.

MAC address z The E-LAN service supports the MAC address learning capability in two learning modes: SVL and IVL.

z MAC addresses can be filtered. That is, the blacklist entry of MAC addresses is supported.

z Setting static MAC address entries is supported. z The capacity of the MAC address table is 16 k (including static

entities). z The MAC address aging time can be configured. The value ranges

from 1 to 65535 minutes.



2-15

Item Performance

Spanning tree Supports the MSTP protocol, and generates only the Common and Internal Spanning Tree (CIST). The functions of MSTP protocol are equal to the RSTP protocol.

Link aggregation Supported for the FE/GE port and microwave port. Supports manual aggregation and static aggregation, and load sharing and non-load sharing. The load sharing algorithm is implemented based on the hash of the MAC address, IP address, or MPLS label.

ERPS Supports the G.8032 compliant ring network protection of Ethernet services.

LPT Disables the Ethernet port that is connected to the user equipment when the transmission network fails.

QoS Supported. For details, see 2.10 QoS.

Traffic control function

Supports the IEEE 802.3x complaint traffic control function.

ETH-OAM Supports IEEE 802.1ag and IEEE 802.3ah compliant ETH-OAM function.

Ethernet performance monitoring

Supports IETF RFC2819 compliant RMON performance monitoring.

Synchronous Ethernet

Supports G.8261 and G.8262 compliant synchronous Ethernet.

z The E-Line service is an Ethernet private line service. The OptiX RTN 980 supports the private line

service based on the Port, Port+VLAN, and Port+QinQ. A maximum of 1024 E-Line services are supported.

z The E-LAN service is an Ethernet private line service. The OptiX RTN 980 supports the private line service based on the 802.1d bridge, 802.1q bridge, and 802.1ad bridge. The bridge supports a maximum of 1024 logical ports.

2.10 QoS The OptiX RTN 980 provides improved quality of service (QoS) capabilities and supports the following eight per-hop behaviors (PHBs): BE, AF1, AF2, AF3, AF4, EF, CS6, and CS7. Thus, the network carriers can offer various QoS levels of service guarantees and build an integrated network to carry data, voice, and video services.


Product Description


Issue 01 (2010-10-30)

Table 2-10 QoS features

Feature Performance

DiffServ z For the Ethernet service, supports mapping the Ethernet service into different PHB service levels based on the C-VLAN priority, S-VLAN priority, IP DSCP value, and MPLS EXP value.

z For the ATM service, supports flexible mapping between the ATM service categories and PHB service levels.

z For the CES service, the PHB service level of each CES service can be set manually, and is EF by default.

Traffic classification

Supports the traffic classification based on the Port, C-VLAN ID, S-VLAN ID, 802.1p priority of the C-VLAN/S-VLAN packet, or DSCP.

Traffic policing Supports flow-based traffic policing, and supports the setting of CAR, PIR, and CIR in the step of 64 kbit/s.

Queue scheduling z Each Ethernet port and integrated IP microwave port supports the queue scheduling of eight priorities.

z Flexibly sets the queue scheduling scheme for each Ethernet port and integrated IP microwave port. The queue scheduling modes include SP, SP+WRR, and WRR.

Traffic shaping z Supports the shaping for the specified Port, priority queue, or service flow.

z Supports the 64 kbit/s step of the PIR and CIR.

Buffer capacity 12 Mbit

2.11 Clock Features The clock features of the OptiX RTN 980 meet the requirements for transporting the clock of the mobile communication network and provide the complete clock protection mechanism.

Table 2-11 lists the clock features supported by the OptiX RTN 980.

Table 2-11 Clock features

Item Performance

Equipment clock Complies with ITU-T G.813; supports three working modes: locked, holdover, and free-run.



2-17

Item Performance

Clock source Includes the following clock sources: z SDH line clock z PDH tributary clock z Radio link clock z Synchronous Ethernet clock z 2048Kbit/s or 2048KHz external clock

SSM protocol/Extended SSM protocol Supported. SSM information can be transmitted in the following modes: z SDH line z SDH radio link z Hybrid/Packet radio link z Synchronization Ethernet z External clock interface (not supporting

the extended SSM protocol)

Tributary clock z Supports the re-timing function of the tributary.

z Supports the transparent transmission of E1 clocks.

z Supports CES ACR clocks.

Output of the external clock Supported. (120-ohm interface complying with G.703, 2 Mbit/s or 2 MHz mode)

2.12 Protection Capability The OptiX RTN 980 provides complete protection schemes.

Table 2-12 Protection schemes

Item Protection Capability

Power input 1+1 hot backup

Internal power module

1+1 hot backup

Equipment-level protection

Control, switching, and timing board

1+1 hot backup

1+1 HSB/SD/FD protection Radio links

N+1 protection

Network-level MPLS MPLS tunnel 1:1 protection


Product Description


Issue 01 (2010-10-30)

Item Protection Capability

PW PW 1:1 protection

LAG protection (including FE/GE ports and radio links)

ERPS protection (including FE/GE ports and radio links)

Ethernet

MSTP protection (including FE/GE ports and radio links)

ATM over E1 IMA protection

TDM services SNCP (including radio links and SDH lines)

STM-1 1+1 or 1:N linear multiplex section protection (MSP)

protection

STM-4 1+1 or 1:1 Linear MSP Two-fiber bi-directional MSP ring

2.13 Network Management The OptiX RTN 980 supports multiple network management (NM) modes, and provides complete NM information exchange schemes.

NM Mode The OptiX RTN 980 supports the following functions:

z Accessing the iManager LCT directly at the near end of the NE to perform the single-point management for the NE

z Using the OptiX iManager U2000 to manage all OptiX RTN NEs on the transmission network and the NEs of Huawei optical transmission products in the concentrated manner and to manage the transmission networks in the unified manner

z Using the SNMP agent to query alarms and performance events

NM Information Exchange Schemes The OptiX RTN 980 supports inband DCN and outband DCN.

Table 2-13 Outband DCN information exchange schemes

Item Specifications

PDH microwave

One or three DCC bytes that are defined by HuaweiPhysical layer

DCC byte


Three DCC bytes that are defined by Huawei



2-19

Item Specifications

SDH microwave

D1-D3, D4-D12, or D1-D12 bytes

SDH line D1-D3, D4-D12, or D1-D12 bytes

Network management interface

Supports one network management Ethernet interface or one network management Ethernet stack interface

DCC transparent transmission

Supports the transparent transmission of DCC bytes through the external clock interface.

HWECC protocols Supported

IP protocols Supported

Network layer

OSI protocols Supported

Table 2-14 Inband DCN information exchange schemes

Item Specifications


Supported. The services are identified with VLAN IDs.

DCN channel

FE/GE interface Supported. The services are identified with VLAN IDs.

Physical layer

Network management interface

Supports one network management Ethernet interface or one network management Ethernet stack interface

IP protocols Supported Network layer

HWECC Supported

2.14 Easy Installation The OptiX RTN 980 supports several installation modes. Thus, the installation of the equipment is flexible and convenient.

The IDU can be installed in the following modes:

z In a 300 mm ETSI cabinet z In a 600 mm ETSI cabinet z In a 450 mm 19-inch cabinet z In a 600 mm 19-inch cabinet z In an open cabinet

The ODU supports two installation modes: direct mounting and separate mounting.


Product Description


Issue 01 (2010-10-30)

2.15 Easy Maintenance The OptiX RTN 980 provides several maintenance features. Thus, the cost of equipment maintenance is effectively reduced.

Manager and Monitoring z The OptiX RTN 980 supports the unified management of the microwave transmission

network and the optical transmission network at the network layer by using the iManager U2000.

z The OptiX RTN 980 provides plentiful alarms and performance events. z The OptiX RTN 980 supports RMON performance events. z The OptiX RTN 980 supports the monitoring and the graphic display of key radio

transmission performance specifications such as the microwave transmit power and the RSSI.

Hardware Maintenance z Each board of the IDU has the running and alarm status indicators. z All the indicators and cable interfaces of the IDU are available on the front panel. z The integrated system control and communication, switching, and clock board, IF board,

service board, and fan board support hot swapping.

Looping and Testing z The OptiX RTN 980 supports the ETH OAM function, include IEEE 802.1ag and IEEE

802.3ah. z The OptiX RTN 980 supports the MPLS OAM function and LSP Ping/Traceroute. z The OptiX RTN 980 supports the PW OAM function and PW Ping/Traceroute. z The OptiX RTN 980 supports various loopback functions of service ports and IF ports. z The OptiX RTN 980 has a built-in test system. You can perform the PRBS test of an IF

port even when no special test tools are available.

Date Backup z The OptiX RTN 980 supports the regular backup and restoration of the NE database

remotely by using the U2000. z The CF card that stores the data configuration file and the software can be replaced on

site. Thus, you can load the data or upgrade the software by replacing the CF card. z Two sets of software and data are stored in the flash memory of the control, switching,

and timing board to facilitate the smooth upgrade.

Software Upgrade z The OptiX RTN 980 supports the remote loading of the NE software and data by using

the U2000 to provide a complete NE upgrade solution. Thus, the entire network can be upgraded rapidly.

z The OptiX RTN 980 supports the NSF function. When the soft reset is performed for the NE software, SDH/PDH services and E-Line services are not interrupted.

z The OptiX RTN 980 supports the hot patch loading function. You can upgrade the software that is running without interrupting services.



2-21

z The OptiX RTN 980 supports the software version rollback function. When a software upgrade fails, the original software can be recovered, and therefore the original services of the system can be restored.

2.16 Energy Saving The OptiX RTN 980 adopts various technologies to reduce equipment energy.

z Uses an easy scheme for board design. z Replaces the ordinary chips with ASIC chips that require a lower power consumption. z Uses the power module with high efficiency. z Intelligent adjustment of the fan speed: With intelligent adjustment of the fan speed, heat

of the system can be dissipated in a timely manner, electrical energy can be reduced, and noise can be minimized.

z Shutting down of the unused FE/GE port and SFP optical module.

2.17 Environmental Protection The OptiX RTN 980 is designed according to the requirements of environmental protection. The product complies with RoHS directive.

z With regard to the packing design, the OptiX RTN 980 undergoes a necessary packing process, and the size of the package containing the equipment and accessories is at most three times that of the net equipment.

z The product is also designed for easy unpacking. In addition, all hazardous substances contained in packaging decompose easily.

z Every plastic component that weighs over 25 g is labeled according to the standards of ISO 11469 and ISO 1043-1 to ISO 1043-4. All components and packages of the equipment are provided with standard labels for recycling.

z Plugs and connectors are easy to find, and the associated operations can be performed by using simple tools.

z All the attached materials, such as labels, are easy to remove. Certain identification information, such as silkscreens, is printed on the front panel or chassis.

OptiX RTN 980 Radio Transmission System Product Description 3 Product Structure


3-1

3 Product Structure About This Chapter

This topic describes the system architecture, hardware architecture, and software architecture of the product, and the process of processing service signals.

3.1 System Architecture

The OptiX RTN 980 consists of a series of functional units, including the service interface unit, timeslot cross-connect unit, packet switching unit, IF unit, control unit, clock unit, auxiliary interface unit, fan unit, power unit, and ODU.

3.2 Hardware Structure

The OptiX RTN 980 adopts a split structure. The system consists of the IDU 980 and the ODU. An ODU is connected to the IDU 980 through an IF cable. The IF cable transmits IF service signals and the O&M signals of the ODU, and supplies -48 V DC power to the ODU.

3.3 Software Structure

The OptiX RTN 980 software consists of the NMS software, IDU software, and ODU software.

3.4 Service Signal Processing Flow

The flows for transmitting the SDH/PDH microwave signals, Hybrid microwave signals, and packet microwave signals are different.

3.1 System Architecture The OptiX RTN 980 consists of a series of functional units, including the service interface unit, timeslot cross-connect unit, packet switching unit, IF unit, control unit, clock unit, auxiliary interface unit, fan unit, power unit, and ODU.

3 Product Structure OptiX RTN 980 Radio Transmission System

Product Description


Issue 01 (2010-10-30)

Figure 3-1 Block diagram

Sync/Async dataExternal alarm

Packetswitching

unit

IF unit

ODU

E1(TDM/ATM)

-48V/-60V DC

IDU

FE/GE

Ethernetsignal

Timeslotcross-

connectunit

VC-4signal

Orderwire

Serviceinterface

unit

Control andoverhead bus

Fanunit

Clockunit

Controlunit

Auxiliaryinterface

unit

Powerunit

External clockinterface

NM interface

Ethernetsignal

VC-4signal

IF signal

RFsignal

Antenna

STM-1/4

Table 3-1 Functional unit

Functional Unit Function

Service interface unit

z Accesses TDM E1 signals. z Access ATM/IMA E1 signals, and demultiplex ATM services

from ATM/IMA E1 signals. z Accesses STM-1/4 signals. z Accesses FE/GE signals. z Supports E1/ATM/Ethernet service emulation based on PWE3.

Timeslot cross-connect unit

Provides the cross-connect function and grooms TDM services.

Packet switching unit

z Processes Ethernet services and forwards packets. z Processes MPLS labels and forwards packets. z Processes PW labels and forwards packets.

IF unit z Maps service signals to microwave frame signals and demaps microwave frame signals to service signals.

z Performs conversion between microwave frame signals and IF analog signals.

z Provides the O&M channel between the IDU and the ODU. z Supports FEC.



3-3

Functional Unit Function

Control unit z Provides the system communications and control. z Provides the system configuration and management. z Collects alarms and monitors performance. z Processes overheads.

Clock unit z Traces the clock source signal and provides various clock signals for the system.

z Supports input and output of one external clock signal.

Auxiliary interface unit

z Provides the orderwire interface. z Provides the synchronous/asynchronous data interface. z Provides the external alarm input/output interface.

Power unit z Accesses -48 V/-60 V DC power. z Provides DC power for the IDU. z Provides -48 V DC power for the ODU.

Fan unit Provides the wind cooling function for the IDU.

3.2 Hardware Structure The OptiX RTN 980 adopts a split structure. The system consists of the IDU 980 and the ODU. An ODU is connected to the IDU 980 through an IF cable. The IF cable transmits IF service signals and the O&M signals of the ODU, and supplies -48 V DC power to the ODU.

3.2.1 IDU

The IDU 980 is the indoor unit of the OptiX RTN 980.

3.2.2 ODU

The ODU is an integrated system and has various types. The architectures and working principles of various types of ODUs are almost the same.

3.2.1 IDU The IDU 980 is the indoor unit of the OptiX RTN 980.

The IDU 980 adopts the card plug-in design. It can implement different functions by configuring different types of boards. All the service boards support hot-swapping.


Product Description


Issue 01 (2010-10-30)

Figure 3-2 IDU slot layout

Slot 15 (CSHN)

Slot 1 (EXT)

Slot 5 (EXT)

Slot 3 (EXT)

Slot 2 (EXT)

Slot 4 (EXT)

Slot 6 (EXT)

Slot 28(FAN)

Slot 7 (EXT) Slot 8 (EXT)

Slot 9 (EXT)

Slot 13 (EXT)

Slot 11 (EXT)

Slot 10 (EXT)

Slot 12 (EXT)

Slot 14 (EXT)

Slot 20 (CSHN)

Slot 26 (PIU) Slot 27 (PIU)

The EXT represents an extended slot, which can be inserted with various IF boards and interface boards.

Table 3-2 List of IDU boards

Board Name

Full Spelling Valid Slot Description

CSHN Hybrid control, switching, and timing board

Slot 15/20 z Supports the TDM cross-connect function, provides 128x128 VC-4 higher order cross-connections and VC-12/VC-3 lower order cross-connections equivalent to 32x32 VC-4s.

z Supports the 22 Gbit/s packet switching function.

z Performs system communication and control.

z Processes clocks and provides one clock input/output interface.

z Provides one network management interface, one network management serial port, and one NE cascading interface.

z Uses the SFP module to provide two STM-1 or STM-4 optical interfaces.

z Provides two GE interfaces (Each GE interface can use an RJ-45 electrical interface or an SFP optical interface independently.)



3-5

Board Name


ISU2 Universal IF board

Slot 1 to slot 14

z Provides one IF interface z Supports integrated IP microwave and

SDH microwave. The supported service modes can be Native E1+Ethernet, Native STM-1+Ethernet or SDH (1xSTM-1 or 2xSTM-1).

z Supports AM function. z Supports highly efficient encapsulation

technology

ISX2 Universal XPIC IF board

Slot 1 to slot 14

z Provides one IF interface z Supports integrated IP microwave and

SDH microwave. The supported service modes can be Native E1+Ethernet, Native STM-1+Ethernet or SDH (1xSTM-1 or 2xSTM-1).

z Supports the XPIC function. z Supports AM function. z Supports highly efficient encapsulation

technology

IF1 SDH IF board

Slot 1 to slot 14

z Provides one IF interface. z Supports the TU-based PDH microwave

solution and the STM-1-based SDH microwave solution.

IFU2 Universal IF board

Slot 1 to slot 14

z Provides one IF interface. z Supports the integrated IP microwave . z Supports AM function.

IFX2 Universal XPIC IF board

Slot 1 to slot 14

z Provides one IF interface. z Supports the integrated IP microwave . z Supports the XPIC function. z Supports the AM function.

SL1D 2xSTM-1 interface board

Slot 1 to slot 14

Uses the SFP module to provide two STM-1 optical interfaces.

EM6T 6 Port RJ45 Ethernet/Gigabit Ethernet Interface Board

Slot 1 to slot 14

z Provides four FE electrical interfaces. z Provides two GE electrical interfaces that

are compatible with the FE electrical interface.


Product Description


Issue 01 (2010-10-30)

Board Name


EM6F 4 Port RJ45 + 2 Port SFP Fast Ethernet/Gigabit Ethernet Interface Board

Slot 1 to slot 14

z Provides four FE electrical interfaces. z Uses the SFP module to provide two GE

optical or electrical interfaces. The GE electrical interfaces are compatible with the FE electrical interfaces.

ML1 16xE1 (smart) tributary board

Slot 1 to slot 14

z Provides sixteen 75-ohm or 120-ohm smart E1 interfaces.

z Supports CES E1, IMA E1, and fractional E1.

MD1 32xE1 (smart) tributary board

Slot 1 to slot 14

z Provides thirty-two 75-ohm or 120-ohm smart E1 interfaces.

z Supports CES E1, IMA E1, and

rtn 980 product description

Documents

huawei trademarks

huawei proprietary

huawei industrial base

optix rtn

microwave types

sdhpdh microwave

radio link forms

purchase scope