Panasonic Eco Solutions Nordic ABMEW01457 Rev: - Operating Instructions Fire alarm system EBL512, V2.7.x67orThe key cabinet has not been closed within 5 minutes after reset of allfire alarms in the system.FAULT: L-C mixed COM-loop x, CU xxThe two wires L (SA) and C (SB) have been mixed (alternated). Checkso that the wire connections are correct according to drawing 512-41.FAULT: LON-board 1590, control unit xx(TLON connection board, 1590)No communication / connection with the TLON network. The boardhas to be changed.FAULT: Loop unit technical number xxxxxxThe communication with the unit is not all right, i.e. the unit is out oforder / faulty.FAULT: Low battery capacity, CU xxBattery internal resistance is too high. The check is performed every12th hour. The battery might be too old. Cables, fuses etc. for externally placed batteries might cause avoltage drop. Check / adjust the rectifier (power supply) voltage (24 V DC). Check the charging voltage over the battery respectively (13.5-13.8 depending on the actual charging step). Check the voltage over a disconnected battery (fully charged >13 V).In the New Zealand convention only:The battery charging is turned off 60 minutes every 24th hour. Abattery voltage < 24.4 V during these 60 minutes will generate a fault.If a fault is generated it will automatically be Serviced after these 60minutes.FAULT: Low main PWS, control unit xx Mains voltage below 187 V AC. Blown fuse (230 V AC) or no