6.4.3 Grounding Specifications for Devices.....................................................................................................................188

6.4.4 Grounding Specifications for Communications Power Supply...............................................................................189

6.4.5 Grounding Specifications for Signal Cables........................................................................................................... 190

6.4.6 Specifications for Laying Out Grounding Cables................................................................................................... 190

6.5 Appendix E Engineering Labels for Cables............................................................................................................... 191

6.5.1 Introduction to Labels..............................................................................................................................................191

6.5.2 Engineering Labels for Optical Fibers.....................................................................................................................199

6.5.3 Engineering Labels for Network Cables................................................................................................................. 202

6.5.4 Engineering Labels for User Cables........................................................................................................................ 203

6.5.5 Engineering Labels for Power Cables..................................................................................................................... 204

6.6 Appendix F Guide to Using Optical Modules............................................................................................................ 207

6.7 Appendix G Fault Tag................................................................................................................................................ 210

Issue 05 (2015-12-01)

Huawei Proprietary and Confidential

vii