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  2. Fire alarm system - Wikipedia

    en.wikipedia.org/wiki/Fire_alarm_system

    Phases of operation include primary recall (typically the ground level), alternate/secondary recall (typically a floor adjacent to the ground level—used when the fire alarm initiation occurred on the primary level), illumination of the "fire hat" indicator when an alarm occurs in the elevator hoistway or associated control room, and in some ...

  3. Emergency Alert System - Wikipedia

    en.wikipedia.org/wiki/Emergency_Alert_System

    The FCC issued several fines relating to EAS tone usage in August 2019, including ABC being fined $395,000 for using wireless emergency alert tones multiple times during a Jimmy Kimmel Live sketch, AMC Networks being fined $104,000 for using the tones in The Walking Dead episode "Omega", Discovery Inc. being fined $68,000 for including footage ...

  4. Manual fire alarm activation - Wikipedia

    en.wikipedia.org/wiki/Manual_fire_alarm_activation

    For example, consider a pull station in the fourth-floor elevator lobby of an office building with a code of 5-3-1. When the station was pulled, the security officers in the building would look up 5-3-1 in a master list of codes. After finding the location of the pull, they should check to see if there is a real fire.

  5. Wireless Emergency Alerts - Wikipedia

    en.wikipedia.org/wiki/Wireless_Emergency_Alerts

    An example of a Wireless Emergency Alert on an Android smartphone, indicating a Tornado Warning in the covered area. Wireless Emergency Alerts (WEA), formerly known as the Commercial Mobile Alert System (CMAS) and, prior to that, as the Personal Localized Alerting Network (PLAN), [1] is an alerting network in the United States designed to disseminate emergency alerts to cell phones using Cell ...

  6. Mobile Emergency Alert System - Wikipedia

    en.wikipedia.org/wiki/Mobile_Emergency_Alert_System

    The Mobile Emergency Alert System (M-EAS) is an information distribution system that utilizes existing digital television spectrum and towers to provide information in emergency situations using rich media. The system can push text, web pages, and video to compatible equipment, such as mobile DTV devices.

  7. Enhanced 911 - Wikipedia

    en.wikipedia.org/wiki/Enhanced_911

    Cellphone manufacturers may program the phone to enable GPS function automatically (in case it has been turned off) when the user places an emergency call. [10] For wireless calls, the ANI (or "pseudo-ANI") is a unique number assigned to each individual 911 call, assigned at a mobile switching center. [6]

  8. Nationwide Wireless Priority Service - Wikipedia

    en.wikipedia.org/wiki/Nationwide_Wireless...

    The Nationwide Wireless Priority Service (WPS) is a system in the United States that allows high-priority emergency telephone calls to avoid congestion on wireless telephone networks. This complements the Government Emergency Telecommunications Service (GETS), which allows such calls to avoid congestion on landline networks.

  9. Fire alarm control panel - Wikipedia

    en.wikipedia.org/wiki/Fire_alarm_control_panel

    Coded panels were the earliest type of central fire alarm control, and were made during the 1800s to the 1970s. A coded panel is similar in many ways to a modern conventional panel (described below), except each zone was connected to its own code wheel, which, depending on the way the panel was set up, would either do sets of four rounds of code until the initiating pull station was reset ...

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