Huawei ATN 950B - Table of Contents

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Contents

About This Document.....................................................................................................................ii

1 Overview.........................................................................................................................................1

1.1 Appearance of the Device...................................................................................................................................2

1.2 Slot Allocation....................................................................................................................................................2

1.3 Boards and Valid Slots.......................................................................................................................................3

1.4 System Architecture...........................................................................................................................................4

1.5 Technical Specifications.....................................................................................................................................5

2 Power Supply System...................................................................................................................9

2.1 Power Supply System Structure.......................................................................................................................10

2.2 PIU - Power Interface Board............................................................................................................................11

2.2.1 Overview.................................................................................................................................................11

2.2.2 Functions and Features............................................................................................................................11

2.2.3 Working Principle and Signal Flow........................................................................................................11

2.2.4 Front Panel...............................................................................................................................................12

2.2.5 Technical Specifications..........................................................................................................................14

2.3 EPS30-4815AF External AC Power Supply System.......................................................................................14

2.3.1 Structure and Functions...........................................................................................................................14

2.3.2 Front Panel...............................................................................................................................................17

2.3.3 Technical Specifications..........................................................................................................................20

3 Heat Dissipation System............................................................................................................21

3.1 System Air Channel..........................................................................................................................................22

3.2 FAN - Fan Board..............................................................................................................................................22

3.2.1 Overview.................................................................................................................................................22

3.2.2 Functions and Features............................................................................................................................22

3.2.3 Working Principle and Signal Flow........................................................................................................22

3.2.4 Front Panel...............................................................................................................................................24

3.2.5 Technical Specifications..........................................................................................................................25

4 AND1CXPA/AND1CXPB - System Control, Cross-connect, and Multi-protocol Process

Unit....................................................................................................................................................26

4.1 Overview..........................................................................................................................................................27

4.2 Functions and Features.....................................................................................................................................27

4.3 Working Principle and Signal Flow.................................................................................................................28

ATN 950B Multi-service Access Equipment

Hardware Description Contents

Issue 03 (2012-07-23) Huawei Proprietary and Confidential