3.3.1 Function Overview..................................................................................................................................40

3.3.2 Appearance and Panel.............................................................................................................................40

3.3.3 Technical Specifications..........................................................................................................................42

3.4 2200 W AC Power Supply...............................................................................................................................42

3.4.1 Function Overview..................................................................................................................................42

3.4.2 Appearance and Panel.............................................................................................................................43

3.4.3 Technical Specifications..........................................................................................................................44

4 Heat Dissipation System............................................................................................................45

4.1 Introduction......................................................................................................................................................46

4.1.1 Heat Dissipation System of the S7712....................................................................................................46

4.1.2 Heat Dissipation System of the S7706....................................................................................................46

4.1.3 Heat Dissipation System of the S7703....................................................................................................47

4.2 Fan Module.......................................................................................................................................................47

4.2.1 Function Overview..................................................................................................................................47

4.2.2 Panel........................................................................................................................................................49

4.2.3 Technical Specifications of the Fan Modules on the S7700...................................................................50

4.3 Air Filter...........................................................................................................................................................51

4.3.1 Air Filter of the S7712.............................................................................................................................51

4.3.2 Air Filter of the S7706.............................................................................................................................51

4.3.3 Air Filter of the S7703.............................................................................................................................52

5 Boards............................................................................................................................................53

5.1 Introduction......................................................................................................................................................56

5.1.1 Board Classification................................................................................................................................56

5.1.2 Slot Distribution and Board Dimensions.................................................................................................57

5.1.3 Relation Between Boards........................................................................................................................60

5.1.4 Interfaces on the Boards..........................................................................................................................62

5.2 SRU-Main Control Unit...................................................................................................................................64

5.2.1 Introduction.............................................................................................................................................64

5.2.2 Function and Application........................................................................................................................64

5.2.3 Panel........................................................................................................................................................65

5.2.4 Interfaces.................................................................................................................................................67

5.2.5 Interface Attributes..................................................................................................................................67

5.2.6 Technical Specifications..........................................................................................................................68

5.3 MCUA-Main Control Unit...............................................................................................................................69

5.3.1 Introduction.............................................................................................................................................69

5.3.2 Function and Application........................................................................................................................69

5.3.3 Panel........................................................................................................................................................70

5.3.4 Interfaces.................................................................................................................................................71

5.3.5 Interface Attributes..................................................................................................................................71

5.3.6 Technical Specifications..........................................................................................................................73

5.4 FSUA - Enhanced Flexible Service Unit..........................................................................................................73

5.4.1 Introduction.............................................................................................................................................73

Issue 02 (2012-09-10)

Huawei Proprietary and Confidential

Contents

Table of Contents