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Proximity card
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Proximity key fob
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Proximity tag
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Remote key
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1. Read only
Usually in credit card format, built-in integrated circuit with an inscribed 64-bit serial code and an antenna, where electric current is inducted in and which at the same time provides power supply. Through this antenna the integrated circuit transmits 64-bit information which can be easily read with the appropriate reader.
Card types:
- C1C standard proximity cards, range approx.10 cm
- C1H proximity cards with enhanced reading distance (range 60-100cm)
- C1T proximity tags, range approx. 10cm, used with bypass terminals
2. Smart, Read - Write
Usually read-write proximity cards MIFARE. The communication between the reader and the card is encoded; the system can operate with several cards in the single reader range. It can simultaneously identify, read and write, but it can communicate with only one card at a time so it is not possible to write in the wrong card. The main benefits of Mifare Standard smart card technology include increased card data security and the ability to have multiple applications operating independently on a single card.
3. Remote keys (remote buttons) with two buttons, usually used for opening barriers, doors etc. Range approximate 20m, built-in roll code. Besides opening doors they can also enable user identification and therefore access control with an appropriate hardware configuration.