The capacity of each sounder circuit will be limited to its current rating. Whilst the simplicity of conventional panels means the biggest defining factor is the number of zones there are some other considerations to bear in mind including the following If you wish to install such a conventional system it is always wise to check the compatibility beforehand. Whilst not true in all cases it typically allows an installer to opt for their preferred panel, detectors, call points and sounders from a variety of sources. In reality many installations utilise a single sounder circuit for the majority of sounders and simply fit a single sounder next to the panel on the 2 nd circuit.Ĭonventional fire systems benefit from wide spread compatibility between various manufacturers panels and devices. Ideally all sounders should be evenly distributed across both sounder circuits and throughout the property to give the best coverage in the event of a fault such as a cable break. All conventional panels will have a minimum of 2 sounder circuits as the BS5839 fire standard dictates that in the event of a fault at least one sounder should remain operational. End of line monitoring is achieved by using either an end of line diode or capacitor, which are supplied with each panel and should be fitted into the last final device of every zone.Ĭonventional panels have separate sounder circuits that power any warning devices (sounders, flashers and/or combined). a radial circuit is required for every zone). Systems greater than 8 zones would benefit from the wiring advantages of 2 wire or addressable fire alarm panels.Īll detectors and call points for each zone are connected in a radial circuit that starts at the panel and ends at the last device (i.e. Certainly in the UK it is rare to see any fire system installation using more than an 8 zone conventional panel. We supply conventional panels that range from a single zone up to 24 zones and even 48 zone panels are available upon request. To comply with the British fire alarm standard BS5839 a property must be divided into zones, each zone can be considered as physical area for the purposes of locating a fire.
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