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HUAWEI NIP6800 Series V500 Hardware Guide

This document of the NIP6800 Series describes hardware structure, installation guide, and hardware maintenance. The content of this document includes the appearance and specifications of the product, the supported expansion cards, preparation before the installation, installation, cabling, and hardware replacement.
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Grounding Specifications for Signal Cables

Grounding Specifications for Signal Cables

This section describes the requirements for grounding signal cables.

Table 4-19 lists the grounding specifications for signal cables.
Table 4-19  Grounding specifications for signal cables




If there are digital trunks that connect the transmission equipment directly or indirectly to the wireless communication equipment in the station, install an E1 lightning protection device for the relative interface of the transmission equipment.


Equip the outdoor cable with a metal jacket and ground its two ends or connect them to the protection ground bar in the equipment room. For cables inside the equipment room, install lightning protection devices at the corresponding interface of the equipment. The protection ground cable for the lightning protection devices should be as short as possible.


Both ends of the external conductor of the coaxial cable and those of the shielding layer of the shielded cable should have good electric contact with the metal shell to which the equipment connects.


The incoming and outgoing signal cables to and from the office and the idle line pair inside the cable should be grounded for protection.


The Tone & Data Access (TDA) cable must pass the Main Distribution Frame (MDF) with a security unit when going out of the office. Its shielding layer should be connected to the protection ground of the MDF. The MDF should use the same grounding body group as the cabinet.


The signal cables within the area of the communication office and mobile station should not be arranged aerially.

Updated: 2019-01-04

Document ID: EDOC1100059253

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