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On-site Maintenance Manual
Airbridge cBTS3612 CDMA Base Station
3.2.1 Fault Description ................................................. 3-5
3.2.2 Troubleshooting .................................................. 3-5
3.3 BTS Control Interface Module (BCIM)............................. 3-8
3.3.1 Fault Description ................................................. 3-8
3.3.2 Troubleshooting .................................................. 3-8
3.4 BTS Control & Clock Module (BCKM) ........................... 3-10
3.4.1 Fault Description ............................................... 3-10
3.4.2 Troubleshooting ................................................ 3-10
3.5 BTS Channel Process Module (BCPM)......................... 3-12
3.5.1 Fault Description ............................................... 3-12
3.5.2 Troubleshooting ................................................ 3-12
3.6 BTS Resource Distribution Module (BRDM).................. 3-14
3.6.1 Fault Description ............................................... 3-14
3.6.2 Troubleshooting ................................................ 3-14
3.7 BTS Transceiver Module (BTRM) ................................. 3-16
3.7.1 Fault Description ............................................... 3-16
3.7.2 Troubleshooting ................................................ 3-17
3.8 BTS High Power Amplifier Unit (BHPA) ........................ 3-20
3.8.1 Fault Description ............................................... 3-20
3.8.2 Troubleshooting ................................................ 3-20
3.9 Receive LNA Distribution Unit (RLDU).......................... 3-23
3.9.1 Fault Description ............................................... 3-23
3.9.2 Troubleshooting ................................................ 3-23
3.10 Power Supply Unit (PSU) ........................................... 3-25
3.10.1 Fault Description ............................................. 3-25
3.10.2 Troubleshooting............................................... 3-25
3.11 The RF Antenna and Feeder ...................................... 3-27
3.11.1 Fault Description ............................................. 3-27
3.11.2 Troubleshooting............................................... 3-27
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Troubleshooting
