The fire detection system includes fire detection devices (manual triggers, automatic detectors, etc.), intermediate devices (wired networks, etc.) and control and signaling equipment, also called "signaling board". "Or" control board ", which alerts you of any solicitation of the system in case of disturbance or fire alarm. The organs are arranged on loops or lines connected to the control and signaling equipment.
In this diagram, the sensor that detects a suspicious heat does not just operate a local siren: it immediately transfers the information to the alarm center, which immediately alerts the site manager and the central monitoring station.