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  2. Door security - Wikipedia

    en.wikipedia.org/wiki/Door_security

    Door security. A metal doorframe with a strike plate built in: in other doors this would be a metal strikeplate in a wooden doorframe. The term door security or door security gate may refer to any of a range of measures used to strengthen doors against door breaching, ram-raiding and lock picking, and prevent crimes such as burglary and home ...

  3. Mantrap (access control) - Wikipedia

    en.wikipedia.org/wiki/Mantrap_(access_control)

    Mantrap (access control) A mantrap, security mantrap portal, airlock, sally port or access control vestibule is a physical security access control system comprising a small space with two sets of interlocking doors, such that the first set of doors must close before the second set opens. [1] [2] [3] Airlocks have a very similar design, allowing ...

  4. Electromagnetic lock - Wikipedia

    en.wikipedia.org/wiki/Electromagnetic_lock

    Operation. The principle behind an electromagnetic lock is the use of electromagnetism to lock a door when energized. The holding force should be collinear with the load, and the lock and armature plate should be face-to-face to achieve optimal operation. The magnetic lock relies upon some of the basic concepts of electromagnetism.

  5. Rational DOORS - Wikipedia

    en.wikipedia.org/wiki/Rational_DOORS

    Rational Dynamic Object Oriented Requirements System (DOORS) (formerly Telelogic DOORS) is a requirements management tool. It is a client–server application, with a Windows-only client and servers for Linux, Windows, and Solaris. There is also a web client, DOORS Web Access.

  6. Access control - Wikipedia

    en.wikipedia.org/wiki/Access_control

    Access control system components Various control system components. Components of an access control system include: An access control panel (also known as a controller) An access-controlled entry, such as a door, turnstile, parking gate, elevator, or other physical barrier; A reader installed near the entry. (In cases where the exit is also ...

  7. Maximum transmission unit - Wikipedia

    en.wikipedia.org/wiki/Maximum_transmission_unit

    Maximum transmission unit. In computer networking, the maximum transmission unit ( MTU) is the size of the largest protocol data unit (PDU) that can be communicated in a single network layer transaction. [1] The MTU relates to, but is not identical to the maximum frame size that can be transported on the data link layer, e.g., Ethernet frame .

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