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Showing posts from March, 2022

Cell power failure ALARMS

 Cell power failure Fault ID and name 4090: EFaultId_TxCarrierInputPowerLowA Used in products FlexiBTS, LTE Detecting unit FSM Source LCR Meaning Flexi Radio Module has detected low downlink carrier input power from the Flexi System Module. State Start Unit status Out of order Unit status attributes   Effect The cell is disabled Reported alarms 7653 CELL FAULTY LED display None Instructions 1. Check the other active alarms and act accordingly. 2. If that does not help, block/unblock the system module. 3. FSMr2: If that does not help, replace the system module. FSMr3: If the faulty cell is on the baseband extension module, replace the extension module. Related faults