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  2. Door phone - Wikipedia

    en.wikipedia.org/wiki/Door_phone

    Door phone. A door phone or door bell phone is a set of electrical and electronic elements used to handle communication between a resident in a house, apartment or villa and a guest outside. The device can also lock or unlock the door it has been configured to work with. Door phones have been used across a variety of commercial and residential ...

  3. Electronic lock - Wikipedia

    en.wikipedia.org/wiki/Electronic_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. Electric locks may be connected to an access control system, the advantages of which include: key control, where keys can be added and ...

  4. Access badge - Wikipedia

    en.wikipedia.org/wiki/Access_badge

    A private security officer with an access card/ID card. 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.

  5. Access control - Wikipedia

    en.wikipedia.org/wiki/Access_control

    A sailor checks an identification card (ID) before allowing a vehicle to enter a military installation. In physical security and information security, access control ( AC) is the selective restriction of access to a place or other resource, while access management describes the process. The act of accessing may mean consuming, entering, or ...

  6. Cardkey - Wikipedia

    en.wikipedia.org/wiki/Cardkey

    Cardkey. Cardkey was a producer of electronic access control products and was based in Simi Valley, California. [1] [2] They were the first company to develop and widely distribute "Electronic Access Control Systems". The company's original readers used cards which were made from barium ferrite and worked by magnetically attracting and ...

  7. Keycard lock - Wikipedia

    en.wikipedia.org/wiki/Keycard_lock

    A keycard lock is a lock operated by a keycard, a flat, rectangular plastic card. The card typically, but not always, has identical dimensions to that of a credit card, that is ID-1 format. The card stores a physical or digital pattern that the door mechanism accepts before disengaging the lock. There are several common types of keycards in use ...

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