Confidential and Proprietary Information of ZTE CORPORATION
109
Lightning Protection Requirements
Following are lightning protection requirements to install a GPS antenna:
Install GPS antenna within 45
°
lightning protection coverage area of
tower. Otherwise, install a special lightning arrester for the GPS
antenna.
Place GPS antenna away from lightning strikes. If it is tower mounted,
install it in a safe place on the roof or in tower lower part.
Ensure that pole supporting GPS antenna is grounded.
NJ-9 Connector Preparation
This section describes NJ9 GPS connector preparation procedure:
NJ-9 Connector
For GPS feeder cables shorter than 80 m use NJ-9 GPS connector. Figure
89 shows NJ-9 GPS connector.
F
I G U R E
8 9
-
N J - 9
G P S
C
O N N E C T O R
Содержание ZXC10 CBTS O1
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