Alarm

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rxasp:moty=rxotg; ABIS PATH UNAVAIL : There are not enough Abis paths defined in the TG. BTS EXTERNAL : A fault is external to the BTS equipment. BTS INTERNAL : A fault exists in a piece of equipment which is intern al to the BTS. CON QUEUE CONGESTION : At least one of the LAPD Concentrator concentration ou tlet queues has reached an unacceptable filling level. FORLOPP RELEASE : Raised at the start of a TG Forlopp Release and automa tically ceased on completion of the TG Forlopp Recovery. LAPD SIGNALLING OVERLOAD: Either 16 kbps or 32 kbps Link Access Protocol for the D-Channel (LAPD) multiplexed communication link is overloaded. LMT INTERVENTION : A Local Maintenance Terminal (LMT) Intervention fault is received activities in the BTS. LOCAL MODE due to local :maintenance The MO is in Local Mode, or the MO has changed from Lo cal Mode to Remote Mode while an OML fault exists. LOOP TEST FAILED : An automatic loop test of the traffic carrying capabil ities has failed. MAINS FAILURE : A fault exists in a piece of BTS equipment which indic ates a failure of power source and which may affect the operation of the BTS cur rently or in the future. The power source can be either internal or external to the BTS. OML FAULT : A fault exists in the communications link between the BSC and the BTS. This alarm includes faults in the transmission equipment and eq uipment in the BSC. OPERATOR CONDITION : An abnormal condition has been detected in the BTS sit e which does not affect the operational function of the BTS. PERMANENT FAULT : An MO is classified as being permanently faulty when f aults in the MO have occurred and been cleared a certain number of times within a defined period of time. That is, the MO is "unstable". Manual intervention is required to bring such an MO back into operation. TS SYNC FAULT : Synchronization has been lost on the uplink or downlin k Transcoder and Rate Adaptation Unit (TRAU) channels. TGC FAULT : No active Transceiver Group Control (TGC) application exists in the TG. This is only applicable to the G01 model. The fault can occur, for example, when communication with an entire BTS is lost, or when all TRXCs i n a BTS are manually blocked.

BSC : BTS : CON : CF : LAPD: LMT : MO : MOC : MOTY: OML : TG : TGC : TRXC: TS :

Base Station Controller Base Transceiver Station Concentrator Central Function Link Access Protocol for the D-channel Local Maintenance Terminal Managed Object Managed Object Class Managed Object Type Operations and Mantenance Link Transceiver Group Transceiver Group Controller Transceiver Controller Timeslot

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