爱立信基站维护告警说明 RBS2000 Fault Codes Description (R7.1) Introduction: BTS faults are classified according to importance and origin of fault: ▪ Class 1A: fault inside MO, affecting MO functionality. ▪ Class 1B: fault outside MO, affecting MO functionality. ▪ Class 2A: fault inside MO, not affecting MO functionality. Upon reception of a BTS fault report, the BSC takes following action: ▪ Class 1A: the MO is taken out of operation and tested. - If test result indicates MO not faulty, the MO is taken back into operation and the fault is considered as intermittent. A fault counter keeps track of intermittent faults and the MO will be permanently taken out of operation if the number of intermittent faults gets to……