... load dischargeDepends on the capacity of theexternal battery bankBypassAutomatic transferOn overload and UPS failure Before ... indicatorsStatusLoad level/Battery level, Battery, Utility power,Inverter,Bypass,Overload,FaultAudible alarmBypass, On battery mode,Battery low ,Overload ... ,FaultAcoustic NoiseAt 1meter distance45 dB50 dB45 dB50 dBCommu-nicationsDB-9 portRS-232 ...