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| SecurityDeter unwanted callersAccess Control prevents unwanted visitors from gaining access to your premises, for example cold-calling salesmen. Prevent theftWalk-in theft is commonplace. Valuables and personal possessions disappear in the blink of an eye. Controlling who can come into your premises deters casual theft. Protect your staffLone workers and night staff can be vulnerable to attack and employers are under a legal obligation to protect them. Preventing people from wandering in and allowing staff to check the identity of visitors before unlocking the door are key safety measures. Door PhonesDoor phones allow callers to be identified by voice or video and allowed or denied access. All of our telephone systems will allow any or all extension users to talk to callers and allow or deny access. Mostly we will be controlling a door but it could be a car park barrier, a turnstile, or it may not be any of these. A door phone could be used to ask for lights or equipment to be turned on.
The problem with keys is....A door phone controls entry but some form of bypass is normally required for staff members. With mechanical locks and keys if one key is lost then security can only be restored by replacing the lock and all the keys in circulation. Mechanical locks are normally designed to be used a small number of times each day. Constant use results in abnormal wear and high maintenance costs as keys break in locks. If something goes missing and many keys are in circulation it can be impossible to trace the culprit.
Proximity keys are special keys, normally in the form of a key tag or else built in to an identity badge. They have no moving parts and require no battery. Simply placing the key near a reader unlocks the door. If the key is part of an ID badge clipped to a belt and the reader is at waist height then someone carrying packages can unlock the door simply by standing next to the reader.
Magnetic swipe cards operate in a similar way but need to be swiped through the reader. Proximity keys and swipe cards are both uniquely identifiable. This allows records to be automatically kept of all entries/exits, it allows lost keys to be denied access without affecting other users, and it allows different levels of access, allowing users access only to those areas they are authorised to enter. | ||||||||||||||||||