Rechargeable battery andbattery monitoringThe following table contains several examples.Causes Relay LED IndicationRecharge-able batteryBattery or externalsupplyJumpers BatteryWarning RB MB /BAUIn order In order MA-NA closedMN-NN closedMB-NB open- Dark Dark InactiveFaulty In order MA-NA closedMN-NN closedMB-NB openActive Lit Dark InactiveIn order Faulty MA-NA closedMN-NN closedMB-NB openActive Dark Lit InactiveFaulty Faulty MA-NA closedMN-NN closedMB-NB openActive Lit Lit ActiveNotmonitoredIn order MA-NA openMN-NN closedMB-NB open- Dark Dark InactiveNotmonitoredFaulty MA-NA openMN-NN closedMB-NB openActive Dark Lit ActiveNotmonitoredNotmonitoredMA-NA irrelevantMN-NN openMB-NB open- Dark Dark InactiveNote:Jumper MB - NB open: when line voltage returns the signal /BAU(battery failure) is activated by a corresponding error.Jumper MB - NB closed: when line voltage returns and duringoperation the signal /BAU (battery failure) is activated by acorresponding error.Power Supply UnitsSystem Manual4 - 42 C79000-B8576-C199-03