Access control is basically the management of monitoring and controlling who goes where and when. This is done by a range of access control systems including swipe codes and proximity readers.

Access control systems can be integrated into other systems in the building such as time and attendance records and CCTV systems which will activate when a door is opened to provide usual proof of who is entering the building.

Our systems respond very quickly and can be programmed to restrict users to individual areas within specific days and/or weeks. Special facilities include an expiry feature where a user's access can automatically cease after a certain time period; programming to allow for daylight savings, public holidays and reminders. An example of a reminder maybe to change video tapes. Systems can also be monitored off-site for violated access.

When a credential is presented to a reader, the reader sends the credential's information, usually a number, to a control panel which is a highly reliable processor. The control panel compares the credential's number to an access control list, grants or denies the presented request, and sends a transaction log to a database. When access is denied based on the access control list, the door remains locked. If there is a match between the credential and the access control list, the control panel operates a relay that in turn unlocks the door. The control panel ignores a door open signal to prevent an alarm. Often the reader provides feedback, such as a flashing red LED for access denied and a flashing green LED for access granted.