... DC start 4)19 inch line interactive UPS Main Features Full digitized microprocessor controlled improves UPS reliability Use single chip microprocessor, ... simply the circuit, improve the agility and stability of UPS control. Auto-bypass When LI-RM/INV.fails, the ... surveillance equipments. include:mains status,UPS working status,system setup,menu operation, remoted control and self-diagnostic,record and ...