Connecting Ground Cables - Huawei AP8030DN Installation And Maintenance Manual

Huawei AP8030DN & AP8130DN
Hardware Installation and Maintenance Guide

2.6.3 Connecting Ground Cables

Grounding is a key step in device installation. The ground cable of a device must be correctly
connected to protect the device from lightning, electromagnetic interference, and electrostatic
charges. Outdoor APs support built-in surge protection on all interfaces, but the surge protection
works only when the outdoor APs are grounded.
Requirements for laying out ground cables
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l The network cables used are shielded straight-through cables.
l Ensure that the RJ45 connector is correctly connected to the AP. Otherwise, the network cable
may be damaged. Before removing the network cable from the AP, remove the waterproof PG
connector first and then remove the RJ45 connector.
l The cable cannot exceed 100 meters.
The ground cables must be connected to a group of ground bars.
The bend radius of the ground cables must be larger than or equal to five times the cable
diameter.
The ground cables must be buried underground or routed indoors and cannot be led into
the equipment room aerially.
Both ends of the external conductor of the coaxial cable and those of the shield layer of the
shielded cable should have good electric contact with the metal shell of the equipment they
connect to.
Ground cables must be separated from signal cables to reduce interference between them.
Do not add any switch or fuse on the ground cable.
Do not use another device for an electrical connection with the ground cable.
All metal components in the shell must be securely connected to the ground terminal.
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