fire alarm system wired using a radial method (single legs of cable). These radials are wired from the main fire alarm panel and are either fire alarm zones or sounder circuits. Fire alarm zones are the radial circuits that monitor the detectors and manual call points
A fire alarm system is a building system designed to detect and alert occupants and emergency forces of the presence of smoke, fire, carbon monoxide, or other fire-related emergencies. Fire alarm systems are required in most commercial buildings.
