DSC RM-1 Power Supervision Relay for 4-wire Smokes
DSC RM-1 Power Supervision Relay for 4-wire Smokes
This is a four-wire power supervision relay from DSC for four-wire smoke detectors. You will install this at the end of the four-wire smoke detector’s power loop and whenever there is a break in the detector power circuit or a loss of power de-energizes the power supervision relay, opening the contacts and causing a trouble annunciation at the fire alarm control unit.
RM-1 Installation manual