Mains voltage is indicated by a green LED and errors by a red LED on the front, alarm relay. Can be fitted with alarm cards for additional fault alarms and tamper contacts in pre-drilled holes. The unit is protected against overload, short circuit and has built-in protection against deep discharge of the batteries. Mains, load, battery are protected by fuses. Meets both IEEE802.3af and IEEE802.3at. and can deliver up to 25W/port
