System Sensor M500M Control Module

The System Sensor M500M control module is an addressable control module for supervised control and switching in addressable fire alarm and life-safety systems. It uses a signaling line circuit (SLC) and provides a relay-controlled output for remote device activation and monitoring, enabling reliable control of external devices such as notification appliances, relays, and auxiliary devices in commercial and industrial facilities. Commonly installed in fire alarm panels, notification circuits, releasing systems, and building protection networks, it supports applications including alarm notification, HVAC shutdown circuits, door release systems, and building automation interfaces. The M500M belongs to the M500 intelligent module series, with part number M500M, and common replacements include System Sensor M500C, Notifier CMX, and Fire-Lite CMF-300 modules.