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R250D
Hardware Installation and Maintenance Guide
Contents
5.3 Equipment Grounding Specifications...........................................................................................................................75
5.3.1 General Grounding Specifications.............................................................................................................................75
5.3.2 Grounding Specifications for an Equipment Room.................................................................................................. 75
5.3.3 Grounding Specifications for Devices.......................................................................................................................75
5.3.4 Grounding Specifications for Communications Power Supply.................................................................................76
5.3.5 Grounding Specifications for Signal Cables............................................................................................................. 77
5.3.6 Specifications for Laying Out Grounding Cables..................................................................................................... 77
5.4 Engineering Labels for Cables..................................................................................................................................... 78
5.4.1 Introduction to Labels................................................................................................................................................78
5.4.2 Engineering Labels for Optical Fibers.......................................................................................................................86
5.4.3 Engineering Labels for Network Cables................................................................................................................... 89
5.4.4 Engineering Labels for User Cables.......................................................................................................................... 90
5.4.5 Engineering Labels for Power Cables....................................................................................................................... 91
5.5 Guide to Using Optical Modules.................................................................................................................................. 94
5.6 Fault Tag....................................................................................................................................................................... 97
5.7 Installation Checklist.................................................................................................................................................... 98
Issue 01 (2016-09-30)
Huawei Proprietary and Confidential
v
Copyright © Huawei Technologies Co., Ltd.
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