System Sensor 2W-MOD2 Loop Test / Maintenance Module

NOTE: This part is discontinued by the manufacturer. Replace with: MOD2W The System Sensor 2W-MOD2 Loop Test / Maintenance Module allows a control panel to receive a “need for maintenance” signal from two—wire i3 series smoke detectors, model numbers 2W—B, 2WT—B, 2WTA—B, and 2WTR—B. The module uses a form C zone relay to initiate “out of sensitivity” and “freeze trouble”, a form A zone alarm relay and a second form A zone relay to indicate loop fault. An EZ Walk Test puts all detectors on the loop into a Walk Test mode for easy verification of detector loop wiring.