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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. 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 steady sound for ...

3. Manual fire alarm activation - Wikipedia

   en.wikipedia.org/wiki/Manual_fire_alarm_activation

   A fire alarm pull station is an ... which completes a circuit and locks the handle ... Turning the switch one way causes the notification appliances to sound ...

4. Fire alarm control panel - Wikipedia

   en.wikipedia.org/wiki/Fire_alarm_control_panel

   Along with the indicator on the panel, notification appliances, such as horns and strobes, are also activated via the Notification Appliance Circuit (NAC), signalling to building occupants that they must evacuate. In an alarm condition, the fire alarm panel indicates where the alarm originated.

5. Fire alarm system - Wikipedia

   en.wikipedia.org/wiki/Fire_alarm_system

   Mass notification systems often extend the notification appliances of a standard fire alarm system to include PC-based workstations, text-based digital signage, and a variety of remote notification options including email, text message, RSS feed, or IVR-based telephone text-to-speech messaging.

6. Fire alarm call box - Wikipedia

   en.wikipedia.org/wiki/Fire_alarm_call_box

   A fire alarm box, fire alarm call box, or fire alarm pull box is a device used for notifying a fire department of a fire or a fire alarm activation. Typically installed on street corners or on the outside of commercial buildings in urban areas, they were the main means of summoning firefighters before the general availability of telephones.

7. System Sensor - Wikipedia

   en.wikipedia.org/wiki/System_Sensor

   The SpectrAlert series included horn strobes, strobes, remote horns, chimes, chime strobes, speakers, and speaker strobes. A main feature of these alarms was the ability to sync them using a System Sensor MDL sync module or the System Sensor sync protocol on a supported fire alarm control panel. Three years after the initial release of the ...