... . Over-temperature Protection11. Intelligent Fan Speed Control Function to monitor and control almost all functions of your UPS ... OUTPUTAC OutputOutput systemSingle phrase & earth groundOutput voltage230±20%(inverter output)Output frequency50±5Hz(line normal, according to ... status, load, temperature,O/P Voltage,Frequency, B/P Voltage,Frequency CommunicationsRS232,Intelligient Slot (Web power card, ...