What is an "RFID tag" used for in EAC systems?

An RFID tag is primarily used in Electronic Access Control (EAC) systems to identify and authenticate users through radio-frequency identification. This technology allows for the wireless transmission of data between the RFID tag, which contains unique identifiers, and an RFID reader. When a user approaches a reader with an RFID tag, the reader captures the tag's information, enabling the system to verify the user's identity and grant or deny access accordingly.

This form of identification is particularly valuable in EAC systems because it streamlines the process of access control. Users can gain entry without the need for physical contact, such as swiping a card or entering a PIN, making the system not only more efficient but also enhancing security. The use of RFID technology in this context enhances user convenience and reduces the potential for unauthorized access by ensuring that only individuals with the correct tags are able to access specific areas or resources.