HUAWEI BTS3012 Fast Installation Guide Internal Use
21
Stick colored rings
You can stick different number of rings of different colors to both ends of cables to avoid the reverse
connection. The colored rings in a radio frequency channel should be the same. In the following
picture, different cells use colored rings of different colors; the receiving end and transmitting end use
different number of color rings.
Constructing
the grounding
network
All outdoor BTSs need grounding network. Establish the grounding network and test the quality of
grounding network before civil construction.
For construction of the grounding network, refer to the following picture.
D
D
P
U
Dual-polarization antenna
Feeder
cable
1/2 inch jumper
1/4 inch
jumper
CR1
CR2
CR3
CR4
CR5
CR6
CR7
CR8
CRn indicates the code of colored rings. The feeder cables or jumpers in a radio
frequency channel use colored rings of the same colors and quantities.
namely:
CR1
＝
CR3
＝
CR5
＝
CR7
CR2
＝
CR4
＝
CR6
＝
CR8
Note: The picture shows color rings of only a cell. Other cells use colored rings of different colors.
