Analogue Addressable Fire Alarm Systems differ from conventional systems in a number of ways and certainly add more flexibility, intelligence, speed of identification and scope of control. For this reason Analogue Addressable Fire Alarm Systems are the natural choice for larger premises and more complex system requirements.

In an analogue addressable system detectors are wired in a loop around the building with each detector having its own unique 'address'. The system may contain one or more loops depending upon the size of the system and design requirements. The Fire Control Panel 'communicates' with each detector individually and receives a status report, i.e. 'Healthy', 'In Alarm' or 'In Fault', etc. As each detector has an individual 'address' the fire alarm control panel is able to display/indicate the precise location of the device in question, which obviously helps speed the location of an incident and for this reason 'zoning' of the system is not necessary, although it may be done for convenience.

Addressable detectors are, in themselves, 'intelligent' devices which are capable of reporting far more than just fire or fault conditions; for example, most detectors are able to signal if contamination within the device (dust, etc,) reaches a pre-set level enabling maintenance to take place prior to problems being experienced. Addressable detectors are also able to provide pre-alarm warnings when smoke/heat levels reach a pre-set level, enabling investigation of the fire to take place prior to a full evacuation alarm and Fire Brigade signalling taking place.

Sounders may either be conventionally wired or by using addressable sounders, wired in a "loop" thereby making considerable savings in terms of cable and labour.

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