ATN 950B Multi-service Access Equipment
Hardware Description
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
2.2 PIU - Power Interface Board............................................................................................................................11
2.2.1 Overview.................................................................................................................................................11
2.2.2 Functions and Features............................................................................................................................11
2.2.4 Front Panel...............................................................................................................................................12
2.2.5 Technical Specifications..........................................................................................................................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
3.2.4 Front Panel...............................................................................................................................................24
3.2.5 Technical Specifications..........................................................................................................................25
Unit....................................................................................................................................................26
4.1 Overview..........................................................................................................................................................27
4.2 Functions and Features.....................................................................................................................................27
Issue 03 (2012-07-23)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
Contents
Contents
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