The FC410BDM Beam Detector Interface Module is designed to power and interface one FIRERAY 50/100/2000/5000 Beam Detector to the FireClass Digital Addressable Loop. The FC410BDM monitors the Fire and Fault contacts and also monitors for open and short circuits on the connections between the interface and the beam detector. For remote siting of the FIRERAY detector an optional BTM800 Terminal Module can be used.