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R250D-E
Hardware Installation and Maintenance Guide
Com
pone
nt
Power
groun
cables
Optica
modul
Issue 01 (2016-09-30)
Applic
No.
able
Scope
Outdoor
10
antenna
1
General
and
2
General
d
3
General
4
General
5
General
6
General
7
General
8
General
9
General
10
General
11
General
l
1
General
e
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
Check Item
If multiple APs are mounted to different poles, the APs
should provide signal coverage in the same direction or in
back-to-back mode to ensure that main lobe of antennas on
different APs do not face each other.
Recommended AP distance:
≥ 44 m (APs provide signal coverage in the same direction)
≥ 6 m (APs provide distance in back-to-back mode)
The female connectors of power cables connecting to the
device are fixed using a locking latch.
The power cables and ground cables are correctly connected.
The power cables and ground cables are complete and not
spliced.
The excess of power cables or ground cables are trimmed off
without any coils. The power cables connecting the delivered
surge protection boxes and devices cannot be cut. These
power cables can be coiled.
Power cables and ground cable are separated from the signal
cables.
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.
The equipotential cables between the attaching cabinets shall
be securely connected.
The lugs for the power cables and ground cables are soldered
or crimped securely.
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.
Labels are filled and attached to power cables and ground
cables correctly.
Power cables deployed outdoors must be covered by PVC
tubes.
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.
5 Appendix
105
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