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Conventional Fire Alarm Systems

A conventional fire alarm system (also referred to as a 4 wire system) consists of automatic detectors and manual call points wired to the fire alarm control panel in Zones. Each Zone is a physical wiring circuit. The fire alarm control panel has a number of Zone LEDs which will illuminate should a device in that zone be activated. The purpose of Zones are to provide an indication of where a fire has been detected.

The control panel is then wired separately to a minimum of two sounder circuits which accommodate the systems audible warning devices (e.g. bells, electronic sounders etc). Each detection circuit and sounder circuit has an end of line device (resistor) for monitoring purposes.

Popular Conventional Fire Systems