... /P&O/P voltage, O/P Frequency, battery, loadAlarmAlarmMains failure, battery low, overload, inverter faultMutemanualNoise< 45 dB (at ... < 95% (Non-Condensing)InterfaceTypeTrue RS 232 CommunicationfunctionInverter, battery, mains failure, battery low, remote shutdown, menu opertationSNMPOptionalcomplianceconformity with CE,IEC62040 ... x 133 3KVA pure sinewave 48VDC rack mounted Inverter