3000VA / 3kVA online, double-conversion UPS system for critical server, network and telecommunications equipment. XR configuration offers twice the battery capacity as comparable XL version. Full time sine wave 110 or 120V output with +/-2% voltage regulation. Online, double-conversion UPS actively converts raw incoming AC power to DC, then re-converts output back to completely regulated, filtered AC output. Operates continuously without using battery power during brownouts to 65V and overvoltages to 150V. NEMA L5-30P input plug. NEMA 5-15R, NEMA 5-15/20R and NEMA L5-30R output receptacles. Network management interfaces support simultaneous communications via USB port, DB9 serial port and SNMPWEBCARD slot. Includes USB and DB9 serial ports. Built-in DB9 port offers both enhanced RS-232 enabled monitoring data, plus contact closure monitoring ability. HID-compliant USB interface enables integration with built-in power management and auto shutdown features of Windows and Mac OS X.