Confidential and Proprietary Information of ZTE CORPORATION
127
Antenna and GPS Feeder
System Installation Check
Ensure that antenna and GPS feeder system are installed according to
engineering design specifications. Check for following after antenna and
GPS feeder system installation:
1/2” Indoor Jumper
Indoor jumper is properly connected to terminal on cabinet top.
Indoor jumpers are tidy, in appropriate length and bound on cabling
rack in order.
Jumpers are laid in layers according to sectors.
30 cm straight jumpers are connected between cabinet and a lightning
arrester.
Lightning arrester
RF lightning arrester is connected to feeder connector and fastened
tightly.
GPS lightning arrester 6 mm
2
yellow grounding cable is properly
connected with outdoor grounding copper busbar.
RF and GPS lightning arresters are mounted between two crosspieces
of cabling rack without touching cabling rack.
Lightning arrester is insulated from cabling rack.
Lightning arrester rack grounding cable is grounded and routed to
outdoor grounding bar for reliable grounding.
Main GPS Feeder
Ensure the main feeder profile is flat and smooth. There are no copper
scraps in copper tube. Feeder connectors are connected tightly. Use a
special cutter to prepare main feeder connector.
7/8" feeder connector is installed properly and tightened well to avoid
any abnormal SWR caused by false connections.
Feeder between the tower top and the equipment room is grounded in
at least three points. Grounding points are bound firmly with proper
waterproof measures.
When tower is 2362.20 inch above and needs a longer feeder, place
another feeder grounding clip in middle of the tower.
Feeder grounding clip terminals are fixed on steel plate of a nearby
tower.
Содержание ZXC10 CBTS O1
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