The DDM800 PROVIDES THE ABILITY TO CONNECT AND INTERFACE 2zones of 20V DC 2-wire conventional fire detectors, or two 4-20 mA signaling sensors, to the MX fire alarm controller.

The DDM800 monitors the status of the detectors and the wiring to the detectors and signals detector and wiring status back to the controller.

The conventional detector circuits can be configured in one of two ways:

To monitor 1 or 2 Class B spur circuits

To monitor a single Class A loop circuit

The DDM800 supports the BS 5839 DETECTOR REMOVAL OPTION