Detectors in analogue addressable system are wired in a loop around the building with unique address for each detector. A building can have one or more loops depending upon the size of the system and design requirements. The heart to an analogue addressable fire alarm system is its fire Control Panel, which communicates with each detector individually and receives a status report, etc. Because each detector has an individual 'address' the control panel is able to display/indicate the precise location of the device in need, and helps in finding the location of fire and for this reason 'zoning' of the system as in conventional system is not necessary.
Addressable detectors are intelligent devices that are capable of reporting fire or fault conditions, provide pre-alarm warnings when smoke/heat levels reach a pre-set level, enabling full evacuation 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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