The beam operates totally on the basic principle of light obscuration employing infrared. The OSI-RI detector is a merged transmitter/receiver that could be directly connected to an smart detector circuit in LiteSpeed® or CLIP manner. Electrical power and connectivity come about during the imager only and the OSID-R only requires https://www.firesense.co.uk/type/addressable-fire-system/addressable-beam-detectors/