Addressable fire alarm
A fire-alarm architecture in which compatible devices can report individual identities and status to the control equipment.
Authority having jurisdiction
The organization, office or person responsible for interpreting, approving or enforcing applicable requirements for a particular matter.
Carbon monoxide (CO)
A toxic gas produced by incomplete combustion. It is different from carbon dioxide.
Carbon dioxide (CO₂)
A different gas commonly associated with respiration, ventilation and some industrial or beverage processes.
Combination alarm
A device containing more than one alarm function, such as smoke and carbon-monoxide sensing, for approved applications.
Conventional fire alarm
A system architecture that commonly identifies an initiating zone rather than an individual device address.
Deficiency
A reported condition that does not meet the applicable inspection, maintenance, design or performance criteria and requires follow-up.
Fire alarm verification
A formal process, where required, of confirming that a fire-alarm installation or alteration has been completed and functions in accordance with the applicable design and rules.
Fire pump
A pump dedicated to providing required water flow and pressure for fire-protection systems.
Heat detector
A fire-detection device intended to respond to temperature conditions rather than smoke alone.
Impairment
A condition in which a fire-protection system or part of it is out of service or unable to perform as intended.
Initiating device
A device or input that can cause a fire-alarm system to recognize an alarm, supervisory or other event.
Notification appliance
A horn, bell, speaker, strobe or combination device used to alert occupants or communicate an emergency.
Smoke alarm
A combined smoke-sensing and local alarm device, commonly used in dwelling or sleeping applications as permitted or required.
Smoke detector
A detector that senses combustion products and typically reports to a fire-alarm control system.
Sprinkler supervisory signal
A signal indicating an off-normal condition involving a valve, pressure or other monitored sprinkler-system component.
Wet-pipe system
A sprinkler system whose piping normally contains water under pressure.
Dry-pipe system
A sprinkler system whose piping normally contains pressurized air or nitrogen, with water held back by a dry-pipe valve.
Voice evacuation
A listed emergency communication arrangement using spoken messages or live paging as part of the fire-alarm strategy.
Fire watch
A temporary measure involving assigned people and procedures when required protection is impaired, as directed by applicable authorities or plans.