Simplex 562-381 Fire Alarm Control Panel CPU Board

The Simplex 562-381 CPU Board is the central processing unit for a Simplex Fire Alarm Control Panel. As the panel’s primary controller, the 562-381 handles the execution of fire-detection logic, processes inputs from detection devices and manual pull stations, and coordinates outputs such as alarms and notification devices through the panel’s signaling circuits. This CPU board is identified by its part number 562-381 and is intended for use in compatible Simplex fire alarm control systems, where it interfaces with the panel’s backplane and built-in software to manage event handling and system configuration. In typical installations, the board serves as the brain of the control panel, enabling real-time monitoring, logic decisions, and reliable response to fire or fault conditions within the protected environment. Buyers familiar with Simplex systems recognize this board as a key component for maintaining the panel’s ability to monitor detectors, supervise circuit integrity, and trigger appropriate annunciation across connected devices.