Cables must be bound tightly and neatly. The sheaths of cables must not be damaged.
Cable ties must face the same direction, and those at the same horizontal line must be in
a straight line.
The excess of indoor cable ties must be cut off. The excess of 5 mm (0.197 in.) of
outdoor cable ties should be reserved, and the cut surfaces must be smooth without sharp
edges.
After cables are installed, labels or nameplates must be attached to the cables at their
ends, curves, and interconnection positions.
Security requirements
When laying out cables, avoid sharp objects, for example sharp edges on the wall. If
necessary, use tubes to protect the cables.
When laying out cables, keep cables away from heat sources, or use heat insulation
materials to insulate the cables from the heat sources.
Reserve a proper distance (0.1 m [3.937 in.] is recommended) between equipment and
cables especially at the cable curves to protect the cables and equipment.
Indoor cabling requirements
Route each cable into the room through the feeder window.
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.
When routing a cable into the room, ensure that a person is assisting you in the room.
Apply waterproof treatment to the feeder window.
Outdoor Cabling Requirements
Protect outdoor cables against potential damage. For example, thread the cables through
tubes.
Cables to be protected include AC power cables, transmission cables, and cables laid out
underground.
Use cable clips to secure cables outdoors.
Arrange cables neatly along the routing direction and use cable clips to secure the cables.
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 (4.92 ft) to 2 m
(6.56 ft), and CPRI fiber optic cables and power cables are secured with clips at an
interval of 1 m (3.28 ft) to 1.5 m (4.92 ft). Ensure that the clips are evenly spaced and in
the same direction.
When fastening cables with a clip, ensure that the cables are aligned neatly and are
routed through the holes in the clip. Do not stretch the cables too tightly.
When using clips to secure cables, tighten the screws on the clips after all cables are
arranged and laid out.
Special Cabling Requirements
Cabling of PGND cables
PGND cables for a base station must be connected to the same ground bar.
PGND cables must be buried in the ground or routed indoors.