User Manual
Airbridge cBTS3612-450 12-carrier CDMA Base Station
3 Quarterly Maintenance Instructions
03Q-0112-20020720-120
3-1
3 Quarterly Maintenance Instructions
Items
Instructions
Note
Primary power supply
Measure the output voltage.
Range of normal output voltage: -40- 60V.
Fans
1) Check if the fans are working normally.
2) Check if there is any alarm reported on the fault
of fans.
Alarm may be triggered when:
1) Some of the fans are unable to rotate;
2) Temperature of some of the fans is
abnormal;
3) Fan rotational speed control is faulty.
Road test
Test on the handoff and coverage area of the cells
with a test MS.
VSWR
Check at the maintenance console if there is any
VSWR alarms.
Alarm collection
equipment
Check if the alarm collection equipment (including
that on humidity, temperature and fire) is normal.
Equipment room
environment
Check the temperature, humidity, dust-proof
performance, and anti-static performance of the
equipment room.
Temperature: -5
C~50
C.
Relative humidity: 5%~90%.
