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Proximity Card Formats
This tab section is included since the Page 0 Application Area 1 of the iCLASS contactless smart card is
holding information typically associated with the Access Control Industry’s proximity card. This screen
shot shows how the typical proximity card bit-stream is presented.
Background information: Proximity Cards
To better understand this reserved area of read-only card memory, we are including this discussion of
proximity cards and formats.
There are several bits constructed together which make up the data sent from a proximity card or token
to the access control reader. The AIR ID reader reads all bits for any format card produced.
The proximity token has several bits, and these will vary from customer to customer. There are literally
hundreds of bit formats and lengths for proximity cards! The most popular is the 26-bit format card.