UPS backup intelligent type uninterrupted power supply Square wave output, Output voltage RS232 interface to PC UPSThe specification of UPS (online ups, online unterrupted power,power supplier,ups, online power) as ... functionIntelligent sound indication and LCD displayTechnical spec (UPS-L backup lntelligent network type uninerrupted power supply)lnput voltageSingle-phase tow-wire 130-280VRange ...