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  2. Fire alarm system - Wikipedia

    en.wikipedia.org/wiki/Fire_alarm_system

    Most fire alarm systems in Europe sound like a siren with alternating frequencies. Fire alarm electronic devices are known as horns in the United States and Canada and can be continuous or set to different codes. Fire alarm warning devices can also be set to different volume levels.

  3. Siren (alarm) - Wikipedia

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

    Many fire horn systems were wired to fire pull boxes that were located around a town, and this would "blast out" a code in respect to that box's location. For example, pull box number 233, when pulled, would trigger the fire horn to sound two blasts, followed by a pause, followed by three blasts, followed by a pause, followed by three more blasts.

  4. 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 ...

  5. When is it appropriate to pull a fire alarm? Here's what ...

    www.aol.com/appropriate-pull-fire-alarm-heres...

    Stone said no matter the reason a fire alarm has been triggered, the department takes the situation very seriously and will still go in the building to confirm there is no fire. It is helpful ...

  6. Emergency service response codes - Wikipedia

    en.wikipedia.org/wiki/Emergency_service_response...

    Country Fire Authority There are two types of response for the Country Fire Authority which cover the outer Melbourne Area. These are similar to those used by Ambulance Victoria, minus the use of Code 2. Code 1: A time critical event with response requiring lights and siren. This usually is a known and going fire or a rescue incident.

  7. Q2B - Wikipedia

    en.wikipedia.org/wiki/Q2B

    This Q2B or "Q-siren" is mounted on a Pierce Platform Aerial Fire Truck owned by the City of Bellingham, WA. The Q2B siren (" Q-siren ") [ 1 ] is an electromechanical siren that is produced by the Federal Signal Corporation and is most recognizable for its sound, which is trademarked , and the look of the siren.

  8. 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 ...

  9. Emergency alert test – live: Government reveals why phone ...

    www.aol.com/emergency-alert-test-live-millions...

    Government reveals why phone users received alarm at different times 17:40 , Martha Mchardy Millions of people across the country received the first-ever nationwide test of the government ’s new ...