Features High frequency and double conversion on-line technology 1. Wide input voltage range, True online UPS 2. Battery cold start. 3. DSP technology, advantaged battery management 4. Automatical fan speed adjustment. Overload and short circuit protection 5. Large LCD status display, more information and history log 6. Complete protection functions 7. Network/Fax/modem surge protections 8. EMI/RFI noise filter 9. Smart Rs232 port with monitoring software 10. PFC technology 11. Intelligent slot for SNMP adaptor(optional) 12. Maintenance Bypass Switch(optional).