*Output voltage, frequency parameter and bypass function can be set via the LCD display.*LED Indicators display Detailed Real-Time UPS Status and parameters.*True online double conversion technology with advanced microprocessor control *Advanced MCU microprocessor control technology, ensure long life reliability.*Rack mount 19”design to save space*Excellent Protection against over voltage, over load, over current, over charge and so on.*Input L and N lines reverse wiring detection, Auto start when AC back.*DC start function, Input PFC revise function. *Smart RS232 communication with monitoring software.*Intelligent slot available for AS-400 Dry contact and SNMP card Remote control.*Rack mount battery pack to extend backup time.