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Reserve drip loops for all cables outside the feeder window before routing them into the
room. Ensure that the radiuses of the drip loops are greater than or equal to the minimum
bending radiuses of the cables.
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When routing a cable into the room, ensure that a person is assisting you in the room.
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Apply waterproof treatment to the feeder window.
Outdoor Cabling Requirements
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Protect outdoor cables against potential damage. For example, put the cables through tubes.
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The cables to be protected include AC power cables, transmission cables, and cables laid
out underground.
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When routing cables through tubes on the ground below the cabinet, put a 30 mm to 50
mm (1.18 in. to 1.97 in.) length of the tubes into the base of the cabinet but do not put the
tubes into the cabinet. Use waterproof tape or waterproof silicon gel to block both ends of
the tubes and use sheet metal tabs to secure the tubes to the cable holes in the base.
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When routing cables through tubes along a metal cable trough below the cabinet, do not
put the tubes into the base of the cabinet but cover the cable trough and connect the tubes
to the cable holes in the base.
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Use clips to secure cables outdoors. For the method of installing a clip, see the installation
guide delivered with the clip.
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Arrange cables neatly along the routing direction and use clips to secure the cables.
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Determine the positions where the clips are installed according to the actual situation. For
example, 7/8" feeders are secured with clips at an interval of 1.5 m to 2 m (4.92 ft to 6.56
ft), CPRI fiber optic cables and power cables are secured with clips at an interval of 1 m
to 1.5 m (3.28 ft to 4.92 ft). Ensure that the clips are evenly spaced and in the same direction.
l
When fastening cables with a clip, ensure that the cables are routed through the holes in
the clip and arranged neatly and straightly. Do not stretch the cables too tightly.
NOTE
There are two types of clips: 3-hole clip and 6-hole clip, which are described as follows:
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A 3-hole clip is shown by illustration a in the following figure. It is often used to fasten feeders.
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A 6-hole clip is shown by illustration b in the following figure. It is often used to fasten power cables and
CPRI fiber optic cables.
Figure 9-1
Exterior of the clips
(1) Cable hole for feeders
(2) Cable hole for fiber optic cables
(3) Cable hole for power cables
TP48200A
Installation Guide
9 Installing Cables
Issue Draft B (2014-01-20)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
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