Interface   1x Serial RS-232 (DB-9) Port  Software APC PowerChute Smart-UPS Bundle   Output Power Capacity 1500VA / 980W   Input Power Voltage 160 - 286 Vac  Surge Energy Rating 480 Joules  Surge Energy Filtering Full time multi-pole noise  Filtering 0.3% IEEE surge let-through : zero clamping  Response time meets UL 1449  Back-Up Time Full Load 7.4 minutes (980 Watts)  Back-Up Time Half Load 26.5 minutes (490 Watts)  Weight 28.68 Kg  Battery Type RBC24 Maintenance-free sealed Lead-Acid battery  Dimensions (432 x 89 x 457 mm) WHD  Form Factor  Rackmount 2U  Warranty 2-year  Limited Warranty by Authorized Distributor