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2. Mantrap (access control) - Wikipedia

   en.wikipedia.org/wiki/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][4] Airlocks have a very similar design, allowing free ingress and egress ...

3. Three-point locking - Wikipedia

   en.wikipedia.org/wiki/Three-point_locking

   A schematic representation of three point lock. Three-point locking, or a multipoint lock, is a locking system installed in cabinet or locker doors to enable more secure locking. Whereas in single-point locking, the door on a cabinet locks only at the point where the key is turned, halfway up the edge of the door, three-point locking enables ...

4. Access control - Wikipedia

   en.wikipedia.org/wiki/Access_control

   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 ...

5. Interlock (engineering) - Wikipedia

   en.wikipedia.org/wiki/Interlock_(engineering)

   Trapped-key interlocking is a method of ensuring safety in industrial environments by forcing the operator through a predetermined sequence using a defined selection of keys, locks and switches. It is called trapped key as it works by releasing and trapping keys in a predetermined sequence. After the control or power has been isolated, a key is ...

6. Remote keyless system - Wikipedia

   en.wikipedia.org/wiki/Remote_keyless_system

   A remote control for a keyless entry system built into an ignition key: pressing a button on the key unlocks the car doors, while another button locks the car and activates its alarm system. A remote keyless system (RKS), also known as remote keyless entry (RKE) or remote central locking, is an electronic lock that controls access to a building ...

7. Electronic lock - Wikipedia

   en.wikipedia.org/wiki/Electronic_lock

   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 ...