Huawei AP4030DN

Huawei AP4030DN
Hardware Installation and Maintenance Guide
Contents
Issue 02 (2015-05-18)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
iii
5.2 Environmental Requirements for Device Operation ................................................................................................... 66
5.2.1 Environmental Requirements for an Equipment Room ........................................................................................... 66
5.2.2 Requirements for Power Supply .............................................................................................................................. 74
5.3 Equipment Grounding Specifications ......................................................................................................................... 76
5.3.1 General Grounding Specifications ........................................................................................................................... 76
5.3.2 Grounding Specifications for an Equipment Room ................................................................................................. 77
5.3.3 Grounding Specifications for Devices ..................................................................................................................... 77
5.3.4 Grounding Specifications for Communications Power Supply ............................................................................... 77
5.3.5 Grounding Specifications for Signal Cables ............................................................................................................ 78
5.3.6 Specifications for Laying Out Grounding Cables .................................................................................................... 78
5.4 Engineering Labels for Cables .................................................................................................................................... 79
5.4.1 Introduction to Labels .............................................................................................................................................. 79
5.4.2 Engineering Labels for Optical Fibers ..................................................................................................................... 87
5.4.3 Engineering Labels for Network Cables .................................................................................................................. 90
5.4.4 Engineering Labels for User Cables ........................................................................................................................ 91
5.4.5 Engineering Labels for Power Cables ...................................................................................................................... 92
5.5 Guide to Using Optical Modules ................................................................................................................................ 95
5.6 Fault Tag ..................................................................................................................................................................... 98