Description
Isolator modules are automatic switches that open a segment of the Signaling Line Circuit (SLC) when a short circuit fault is detected in that segment. The remainder of the Signaling Line Circuit continues to function normally and is unaffected by the short-circuit fault. The isolator modules will close and resume normal operation when the short-circuit fault is removed.
Isolator Module, P/N 74-200012-002, is supplied with a plastic cover plate for mounting to a single-gang electrical box. Isolator Module, P/N 74-200012-004, is designed to mount in the electrical box for the Model 6SB (legacy) detector base. Depending on the type of loop isolator, mount the unit to the gang box using 2 screws or twist the loop isolator onto the detector base.
