5.2 Environmental Requirements for Device Operation.................................................................................................... 69
5.2.1 Environmental Requirements for an Equipment Room............................................................................................ 69
5.2.2 Requirements for Power Supply................................................................................................................................77
5.3 Equipment Grounding Specifications...........................................................................................................................80
5.3.1 General Grounding Specifications.............................................................................................................................80
5.3.2 Grounding Specifications for an Equipment Room.................................................................................................. 80
5.3.3 Grounding Specifications for Devices.......................................................................................................................80
5.3.4 Grounding Specifications for Communications Power Supply.................................................................................81
5.3.5 Grounding Specifications for Signal Cables............................................................................................................. 82
5.3.6 Specifications for Laying Out Grounding Cables..................................................................................................... 82
5.4 Engineering Labels for Cables..................................................................................................................................... 83
5.4.1 Introduction to Labels................................................................................................................................................83
5.4.2 Engineering Labels for Optical Fibers.......................................................................................................................91
5.4.3 Engineering Labels for Network Cables................................................................................................................... 94
5.4.4 Engineering Labels for User Cables..........................................................................................................................95
5.4.5 Engineering Labels for Power Cables....................................................................................................................... 96
5.5 Guide to Using Optical Modules.................................................................................................................................. 99
5.6 Fault Tag..................................................................................................................................................................... 102
5.7 Installation Checklist.................................................................................................................................................. 103
AP7050DE
Hardware Installation and Maintenance Guide Contents
Issue 01 (2016-04-15) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
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