Chapter
8
Installation
of Primary Antenna Feeder System
8-11
2. Implement waterproof processing to the joint between the antenna and jumper
cable.
1) Wrap the joint with the waterproof adhesive tape from top download. The first
layer should be wrapped in the same direction as for fastening the antenna
jumper cable.
2) Wrap the waterproof tape circularly for three layers totally. Note that the next
circle covers half of the previous circle, and the wrap stops at the position 10cm
away from the joint.
3) Grip the joint with force to make the tape stuck firmly with the joint.
4) Wrap two layers of PVC tape around the waterproof adhesive tape in the same
way as for wrapping the waterproof adhesive tape.
5) Finally wrap a layer of anti-ultraviolet tape.
8.5 Installation of Feeder Cable Window
Note:
The size of the feeder cable window provided by ZTE is 400mm
×
400mm. It is a
four-hole window and 12 pieces of feeder cables can pass through it. A
300mm
×
300mm hole should be drilled on the wall for the installation of this
feeder cable window. If a special feeder cable window is used, a hole should be
drilled based on the actual size of it.
No feeder cable window is needed when a micro-BTS is installed outdoors.
The feeder cable window is usually installed on the outside wall of the equipment room,
right between the indoor and outdoor cabling racks.
If the primary feeder cable window is installed on the rooftop, you need to take
measures to make it waterproof. For example, you can seal it with asphaltum or glass
cement.
The feeder cable window has four holes and can be connected with 12 pieces of feeder
cables at most, as shown in Fig. 8.5-1. Follow the steps below to install a feeder cable
window:
1. Determine the installation location based on the engineering design drawing.
2. Drill a hole on the wall according to the size of the feeder cable window used.
