Johnson Controls M500XJ Fire Alarm Fault Isolator Module. This reliable hardware component automatically detects and isolates short-circuit faults on SLC loops to maintain system integrity. - Operating voltage range of 15-32 VDC - Maximum standby current of 450 µA - Compact module dimensions for standard enclosure mounting - Integrated LED status indicator - Compatible with compatible Johnson Controls fire alarm control panels

Engineered for high-performance safety, this module improves upon legacy designs by offering faster response times and enhanced diagnostic capabilities. It effectively isolates branches of the signaling line circuit that experience a short, ensuring the remainder of your fire alarm system continues to monitor the facility without interruption.

Advanced Circuit Protection and Reliability

The M500XJ utilizes sophisticated solid-state technology to monitor the signaling line circuit for impedance fluctuations, instantly disconnecting the affected segment during a short-circuit event. This proactive approach prevents total system failure, allowing your facility to maintain critical life-safety functions even when a wiring fault occurs elsewhere in the loop.