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Entrance to HM Prison Edinburgh. 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.
In the Middle Ages the narrow doors in the city walls also enabled late arrivals to gain entry after the main gates had been closed. [1] If the small entrance in the door of a large gate has a high threshold, it may be called a manway. If it is a separate, narrow entrance next to the main gate, it may be called a pedestrian entrance.
Access control panels - These control the system, make access decisions, and are usually located in a secure area. Access control software runs on the panels and interfaces with card reader . Readers - Installed at access points, these read credentials or other data, and send information to the access control panel.
A door. A door is a hinged or otherwise movable barrier that allows ingress (entry) into and egress (exit) from an enclosure. The created opening in the wall is a doorway or portal. A door's essential and primary purpose is to provide security by controlling access to the doorway (portal).
Access control door wiring when using intelligent readers and IO module. The most common security risk of intrusion through an access control system is by simply following a legitimate user through a door, and this is referred to as tailgating. Often the legitimate user will hold the door for the intruder.
According to the listing, the home offers secrets across its 14,215-square-foot floorplan, like a “secret-door-accessed office and serene meditation room.” Bathroom
A floor plan with a modern vestibule shown in red. A vestibule (also anteroom, antechamber, air-lock entry or foyer) is a small room leading into a larger space [1] such as a lobby, entrance hall, or passage, for the purpose of waiting, withholding the larger space from view, reducing heat loss, providing storage space for outdoor clothing, etc.
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