Features Rugged CRCA sheet with powder coated finish. Modular Construction. Operates on 230 VAC, 24 VDC. Standby Battery backup with build-in charging. Fire Fault status in unambiguous colored LED. System On, Main, Standby ON status indication. Low Battery visual warning with audible buzzer tone. Earth fault indication with audible buzzer tone. Relay Outputs for actuators. Lamp test facility. One man walk test facility. Zone Isolation facility with loop voltage cut off. Compatible to all types of conventional detectors.