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  2. Door phone - Wikipedia

    en.wikipedia.org/wiki/Door_phone

    Door phone plates consist of a matrix of buttons. each of them drive a buzzer located in a unit inside each apartment building. Each apartment building contains a button that can activate the electric strike. There are several installation systems, the most traditional being a system known as 4 + 1, named for the types of wiring that it ...

  3. Video door-phone - Wikipedia

    en.wikipedia.org/wiki/Video_door-phone

    Video door entry consists of both outside and indoor elements: an outdoor panel on the outside, an electronic lock release, and an indoor monitor. The outdoor panel or street panel is installed beside the entrance door or gateway and incorporates different elements ready for use in any climate conditions: one or several pushbuttons to make the call (usually one per home or apartment), a micro ...

  4. Electronic lock - Wikipedia

    en.wikipedia.org/wiki/Electronic_lock

    A quick demonstration of an electronic door lock. An electronic lock (or electric lock) is a locking device which operates by means of electric current. Electric locks are sometimes stand-alone with an electronic control assembly mounted directly to the lock.

  5. Keycard lock - Wikipedia

    en.wikipedia.org/wiki/Keycard_lock

    In the case of the hotel room lock, there is no central system; the keycard and the lock function in the same tradition as a standard key and lock. However, if the card readers communicate with a central system, it is the system that unlocks the door, not the card reader alone. [3]

  6. Remote keyless system - Wikipedia

    en.wikipedia.org/wiki/Remote_keyless_system

    Prior to remote keyless systems (RKS), several manufacturers offered keypad systems which did not allow "remote entry" per se, but allowed a user to enter a vehicle without a key by entering a code on a multi-button keypad on the driver door or pillar — to unlock the driver door.

  7. Smart lock - Wikipedia

    en.wikipedia.org/wiki/Smart_lock

    A smart lock is an electromechanical lock that is designed to perform locking and unlocking operations on a door when it receives a prompt via an electronic keypad, biometric sensor, access card, Bluetooth, or Wi-FI from a registered mobile device. These locks are called smart locks because they use advanced technology and Internet ...

  8. Door security - Wikipedia

    en.wikipedia.org/wiki/Door_security

    A broad range door manufacturer, Premdor (now Masonite) once stated in one of its 1990s brochures entitled "Premdor Entry Systems" page 6 that "The results of tests were overwhelming, Steel edged doors outperform wood-edged doors by a ratio of 7 to 1. When you consider the practically two-thirds of all illegal entries were made through doors...

  9. Access badge - Wikipedia

    en.wikipedia.org/wiki/Access_badge

    An access badge is a credential used to gain entry to an area having automated access control entry points. Entry points may be doors, turnstiles, parking gates or other barriers. Access badges use various technologies to identify the holder of the badge to an access control system.

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