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.
i3 Loop Test & Maintenance Module - 2W-MOD2
- Product Code: SYSTEM SENSOR:2W-MOD2