User's Manual

Requirements for laying out ground cables
l The ground cables must be connected to a group of ground bars.
l The bend radius of the ground cables must be larger than or equal to five times the cable
diameter.
l The ground cables must be buried underground or routed indoors and cannot be led into
the equipment room aerially.
l 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.
l Ground cables must be separated from signal cables to reduce interference between them.
l Do not add any switch or fuse on the ground cable.
l Do not use another device for an electrical connection with the ground cable.
l All metal components in the shell must be securely connected to the ground terminal.
Ground cable connections
1. Cut the ground cable into a proper length and use the M4 OT terminal to connect to the
AP. The OT terminal used to connect to the ground terminal depends on site requirements.
NOTE
To tighten the screws with a torque on the ground bar,
l M4: 1.4N•m.
l M6: 4.8N•m.
l M8: 12N•m.
2. The equipment functions properly when the ground resistance is less than 10 ohms.
Grounding shielded network cables
Using shielded network cables can improve surge protection performance of the AP. To connect
the cable, cut the shield layer open, connect the cable to the ground clip, and wrap the cable with
waterproof and ESD tapes.
Huawei AP8030DN & AP8130DN
Hardware Installation and Maintenance Guide
2 AP Installation
Issue 03 (2015-05-18) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
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