... RS232 interface to PC UPSThe specification of UPS (online ups, online unterrupted power,power supplier,ups, online power) as following:CPU microprocessor control, ... over-voltage, under-voltage, over-load, short circuit, battery low limit) Intelligent battery control and computer communication functionIntelligent sound indication ... mm)385 x135 x210410 x165 x255 130-280V High Frequency Online UPS