No. Description
3 The Tone & Data Access (TDA) cable must pass through the Main
Distribution Frame (MDF) with surge protective device (SPD) when
going out of the oce. The cable's shield layer should be connected to
the protective ground of the MDF. The MDF should use the same
grounding conductor as the cabinet.
4 Do not route signal cables overhead.
4.2.12.3.6 Specications for Laying Out Grounding Cables
Table 4-82 shows the specications for the ground cable.
Table 4-82
Specications for laying out ground cables
No. Description
1 The grounding wire should not run parallel to or twist around the signal
cable.
2 Bury ground underground or arrange them indoors. Do not route ground
cables overhead.
3 Do not connect two cables together to extend the PGND cable, or add
any switches or fuses.
4 The PGND cable should be an alternating yellow and green plastic
insulated one with a copper core.
5 The neutral line of the AC power cable cannot be connected to the
protective ground of transmission and communication equipment in the
equipment room.
6 A PGND cable should be as short as possible, with a length of no more
than 45 m (147.64 ft).
4.2.12.4 Engineering Labels for Cables
An engineering label serves as an identier for on-site installation and
maintenance after the installation. Labels on the cables facilitate correct and
orderly connection of cables, and easy maintenance after installation.
Engineering labels are specialized for power cables and signal cables:
● Signal cables include network cables, optical
bers, and user cables.
● Power cables include the AC power cables and DC power cables.
Fill in labels according to specied requirements to keep consistency of labels in the
equipment room. Make a relevant statement in the self-check report.
HUAWEI NetEngine 8000 F
Hardware Guide 4 Hardware Installation and Parts Replacement
Issue 05 (2023-03-31) Copyright © Huawei Technologies Co., Ltd. 702
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