B3/61 Contractor Trade Practice Exam

The brain of a fire alarm setup is the Fire Alarm Control Unit. It continuously monitors signals from detectors (like smoke or heat sensors) and manual call points, processes that information, and decides when to trigger alarms. It also controls the outputs, such as audible alarms and indicators, and can provide power to detectors and other initiating devices through its power supply. This central unit is distinct from the Fire Command Center, which is the control room or display area for monitoring the system, and from the broader Fire Alarm System or Fire Protection System, which include additional components beyond the processing unit. So, the component that processes inputs and may power detectors is the Fire Alarm Control Unit.