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  2. Fire alarm notification appliance - Wikipedia

    en.wikipedia.org/wiki/Fire_alarm_notification...

    The standard fire alarm sound used in most of North America [citation needed]. Coding refers to the pattern or tones a notification appliance sounds in and is controlled either by the panel or by setting jumpers or DIP switches on the notification appliances. The majority of audible notification appliances installed prior to 1996 produced a ...

  3. Fire alarm system - Wikipedia

    en.wikipedia.org/wiki/Fire_alarm_system

    A fire alarm control panel Fire alarm speaker and pull station. Fire alarm systems are composed of several distinct parts: Fire alarm control panel (FACP), or fire alarm control unit (FACU): This component, the hub of the system, monitors inputs and system integrity, controls outputs, and transmits information.

  4. PASS device - Wikipedia

    en.wikipedia.org/wiki/PASS_device

    In the United States, the National Fire Protection Association sets standards for PASS devices in NFPA 1982. [ 1 ] The PASS device is normally used in conjunction with breathing apparatus; it is a small, battery-powered device attached to the self-contained breathing apparatus (SCBA) harness which enables the firefighter to summon help by ...

  5. Alarm device - Wikipedia

    en.wikipedia.org/wiki/Alarm_device

    A false alarm is one of the most significant issues with conventional alarm systems. They can be triggered for several reasons, such as the movement of pets, [6] typing in the wrong security codes, or loud sounds from windows or doors. In the case of fire alarms, aerosol sprays, smoking, or burning food can all lead to a false alarm. [5]

  6. Siren (alarm) - Wikipedia

    en.wikipedia.org/wiki/Siren_(alarm)

    There are 8,200 alarm sirens for civil protection throughout Switzerland. They are tested once a year, on the first Wednesday in February. [1] Sound sample ⓘ An 1860s-era siren. [2] A siren is a loud noise-making device. There are two general types: mechanical and electronic.

  7. Steam whistle - Wikipedia

    en.wikipedia.org/wiki/Steam_whistle

    This whistle type could be made to sound like a siren or to play a melody. Often called a fire alarm whistle, wildcat whistle, or mocking bird whistle. Toroidal or Levavasseur whistle – a whistle with a torus-shaped (doughnut-shaped) resonant cavity paralleling the annular gas orifice, named after Robert Levavasseur, [23] its inventor. Unlike ...

  8. Manual fire alarm activation - Wikipedia

    en.wikipedia.org/wiki/Manual_fire_alarm_activation

    Many modern fire alarm pull stations are single-action and only require the user to pull down a handle to sound the alarm. Other fire alarm pull stations are dual-action, and as such require the user to perform a second task before pulling down, such as lifting or pushing in a panel on the station or breaking a glass panel with an attached hammer.

  9. Fire-Lite Alarms - Wikipedia

    en.wikipedia.org/wiki/Fire-Lite_Alarms

    Fire-Lite was the first company to introduce a compact, inexpensive addressable fire alarm control panel. [2] Some of their recognizable products include the Fire-Lite BG-10 pull station, introduced in 1983, and the newer BG-12 pull station, introduced in 1999. Fire-Lite is part of the Honeywell Life Safety Group, along with Notifier.