Proximity
Proximity Access Control
Proximity access controls incorporate a radio frequency reader and users carry a card or a keyring that they pass in front of the reader so that it allows access to the building.
Cards and keyrings can be registered or canceled in the system using master cards, or directly on the access panel with programming and passing the card in question. A programming keyboard can also be used, which simulates a card and is used to program the proximity access control panels.
The most common frequencies in proximity access systems are MIFARE (13.56MHz) and EM (125KHz). This data is very important since these technologies are not compatible with each other, that is, you cannot use a MIFARE reader for EM cards / keyrings (and vice versa); therefore, both the reader and the cards/keyrings must be of the same technology.
