Fault Isolators

The Fault Isolator Modules should be spaced between groups of sensors in a loop to protect the rest of the loop. Use to iso- late short circuit problems within a section of a loop so that other sections can continue to operate normally.

They act as an automatic switch that opens when the line voltage on the signaling line circuit (SLC) loop drops below 4V. Intelligent fault isolator modules are intended to be spaced between groups of sensors or modules in a loop to protect the rest of the loop in the event of a short.

Fire-Lite's I300(A) Fault Isolator Module is used with the MS-9050UD, MS-9200UDLS, and MS-9600(UD)LS to protect the system against wire-to-wire short circuits on the SLC loop. The I300(A) should be placed between each device on the SLC loop, to isolate a short-circuit problem between the modules.