Showing 8 of 8 matching glossary entries.
Fire detectionAddressable system
A fire alarm system in which each device has a unique address, letting the panel identify exactly which detector, call point or interface generated an event.
Makes fault-finding far faster than conventional zones — always keep the device schedule current.
Fire detectionAs-fitted drawings
Drawings updated to show what was actually installed — positions, addresses, routes and interfaces — rather than the original design intent.
Standards & lawBS 7273-4
The UK code of practice for actuation of release mechanisms for doors — the fire-alarm-to-door-release interface and its categories of actuation.
InterfacesDoor release interface
The monitored interface releasing held-open fire doors on the mapped alarm condition; a released door must also close and latch fully to count.
Standards & lawEN 54 series
The European product standards for fire detection and alarm system components — panels, power supplies, detectors, call points, sounders, isolators and radio devices each have their own part.
Fire detectionEnd-of-line device
The resistor, capacitor or active unit at the end of a monitored circuit that lets the panel supervise the wiring for open and short circuit faults.
InterfacesInterface unit
A monitored input/output device connecting the fire system to other building systems — plant, dampers, lifts, security — under cause-and-effect control.
Power & batteriesPower supply unit (PSU)
The monitored supply providing system power and battery charging; PSU faults commonly present as charger, battery or mains fault indications.