What function does a "Door Reader" serve?

A "Door Reader" functions primarily by communicating with an ID card to manage access. This device is an integral part of electronic access control systems. When a user presents their ID card (which may be a keycard or badge) to the door reader, the reader scans the card's embedded information, verifying the identity of the individual and determining whether access should be granted or denied based on predetermined permissions.

The operation of a door reader involves reading data from the ID card, which usually includes unique identification features. This information is then transmitted to a control system to make access decisions. The ability to manage and control who can enter specific areas significantly enhances security in various environments, such as offices, secure facilities, and restricted areas.

Overall, the primary role of the door reader is to facilitate secure access through automated communication between the ID card and the access control system. This capability is essential for maintaining a secure environment while allowing authorized personnel to enter restricted areas efficiently.