Access control systems (ACS) are security devices that control a specific location or network electronically. It grants or declines entry to any given location or facility by a computer-based information system.

There are several processes that govern ACS. These are identification, authentication, authorization as well as accountability. There are many companies that provide access control systems supply & installation services across in Sydney.

The identification process collects information about who wants access. The authentication process approves or rejects the credentials provided. There are a number of key components to an access control system. They are as follows:

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Certificates: This is the most commonly used access system, eg. ATM identification number, fingerprint reader, iris scanner, facial recognition, vein recognition. Regardless of the type of credential used, the person requesting access must provide identification to the authentication system.

Reader or Keyboard: This is the recipient of the information provided by the credentials. An example is a proximity card reader where the reader is usually at the door and you have to show the card and insert it a few inches from the reader. The reader then processes the identification number or controller card number for verification.

Interlocking Devices: Devices of this type are powered by electricity, such as electrified locks, electric shocks, and electromagnetic devices. It is a device that keeps the door closed until someone finally gets access through a controller that has checked the identification information provided by the identification data.