Special Features
9uninterruptible power supply (ups); power rating 425 volt amperes; input voltage 85 percent to 120 percent of 115 volts; frequency, 50 hz or 60 hz; output voltage, 115 volts; voltage regulation, automatic from plus or minus 25 percent; frequency stability, 1000 parts per million; waveform, simulated sine wave; transfer time, 2 to 4 milliseconds; surge protection, 320 joules; noise filtering 10 to 50 db; recharge time; 4 hours; battery type, sealed lead acid (sla), 12 v, 7 ampere-hours; backup time, 10 to 20 minutes; indicator lights, normal, battery in use, battery low, overload; alarm, battery in use, battery low, overlead; remote access port, db9-rj232; unit can be turned on without power; 2- stage battery charging to prolong battery life; 2 outlets
