5.1 On-site Cable Assembly and Installation.....................................................................................................................44

5.1.1 Cable Assembly Precautions.....................................................................................................................................44

5.1.2 Assembling Power Cables.........................................................................................................................................45

5.1.3 Assembling Ethernet Cables......................................................................................................................................53

5.1.4 Installing Cable Accessories......................................................................................................................................67

5.1.5 Replacing the Mold of the Crimping Pliers...............................................................................................................83

5.2 Environmental Requirements for Device Operation....................................................................................................86

5.2.1 Environmental Requirements for an Equipment Room............................................................................................86

5.2.2 Requirements for Power Supply................................................................................................................................94

5.3 Equipment Grounding Specifications...........................................................................................................................97

5.3.1 General Grounding Specifications.............................................................................................................................97

5.3.2 Grounding Specifications for an Equipment Room..................................................................................................97

5.3.3 Grounding Specifications for Devices.......................................................................................................................97

5.3.4 Grounding Specifications for Communications Power Supply.................................................................................98

5.3.5 Grounding Specifications for Signal Cables.............................................................................................................99

5.3.6 Specifications for Laying Out Grounding Cables.....................................................................................................99

5.4 Engineering Labels for Cables...................................................................................................................................100

5.4.1 Introduction to Labels..............................................................................................................................................100

5.4.2 Engineering Labels for Optical Fibers.....................................................................................................................108

5.4.3 Engineering Labels for Network Cables.................................................................................................................111

5.4.4 Engineering Labels for User Cables........................................................................................................................112

5.4.5 Engineering Labels for Power Cables.....................................................................................................................113

5.5 Guide to Using Optical Modules................................................................................................................................116

5.6 Fault Tag.....................................................................................................................................................................119

Issue 02 (2014-12-05)

Huawei Proprietary and Confidential

Table of Contents