This document summarizes the components and operation of a fire alarm system. It includes detectors like smoke, heat, and flame detectors that detect fire and send signals to the control panel. The control panel receives these signals and activates alarm devices like bells or strobes to alert occupants. It may also trigger other systems like HVAC shutdown. Detector placement depends on factors like area use and building height. Manual call points allow manual activation. The battery is sized to power the system during standby and alarm.