Com
pone
nt
No.
Applic
able
Scope
Check Item
6
General
Power cables and ground cables are routed straightly and
properly bundled, with sufficient slack at the bend part. If the
cables are fixed on a sharp mechanical part, take protection
measures.
7
General
The equipotential cables between the attaching cabinets shall
be securely connected.
8
General
The lugs for the power cables and ground cables are soldered
or crimped securely.
9
General
The lugs and bare wires of power cables and ground cables
are tightly wrapped with tubes or insulation tape without any
exposed copper wire. Flat washers and spring washers are
installed correctly.
10
General
Labels are filled and attached to power cables and ground
cables correctly.
11
General
Power cables deployed outdoors must be covered by PVC
tubes.
Optica
l
modul
e
1
General
A single-mode fiber can only be used with a single-mode
optical module while a multimode optical fiber can only be
used with a multimode optical module. On most optical
modules, the fibers of different types cannot be used together.
2
General
The labels of pluggable optical modules are smoothly
attached and intact, and cannot be covered by the optical
modules.
3
General
If a short-distance optical fiber is used for a long-distance
optical module, especially in loopback scenarios, use an
optical attenuator to prevent the optical module from being
burnt.
5.8 Guide to Making Drip Loops
To prevent water from flowing into devices along cables, you need to take waterproof
measures, for example, create a drip loop on a cable. As an example, the following describes
how to create drip loops on network cables connected to a device in different directions.
NOTE
l
When a device is installed in a harsh environment or its ports face upward, follow outdoor
waterproof standards to lay out indoor cables. For details, see "Cable Connection" in the
AP6510DN&AP6610DN Hardware Installation and Maintenance Guide
.
l
The network cable directions in the description below are relative to an AP.
l
If a cable is downward, no drip loop is required.
AP4050DN-E
Hardware Installation and Maintenance Guide
5 Appendix
Issue 05 (2018-02-02)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
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