The new readers are available in two variants to suit different security and budgetary requirements, as well as being able to accommodate any existing applications which draw on Mifare technology.
The first system type reads Card Serial Numbers (CSNs), and provides a cost-effective alternative to standard proximity readers. The CSN readers are particularly suitable where there is an existing Mifare population – for example to support cashless vending – and there is a need to add additional access control functionality.
The second type is a sector reader, which securely reads data held in the TDSi-nominated Sector 4 of the Mifare card, using prescribed keys for validation. Using the ‘handshake’ method to ensure mutual authentication between the card and reader, the reader will only accept a card with the correct key.
Card pack
If Mifare technology is already being used, and the Sector 4 key has been assigned for other operations, TDSi is able to supply a reader configuration card pack, which allows the readers to be re-programmed to accept an alternative key, nominated specifically for access control. The company is also able to supply cards with data already populated in Sector 4.
Both readers are fully encapsulated, and so are suitable for use both indoors and out.
TDSi’s technology is fully compatible with the standard Philips Mifare 32 bit chip and fully complies with the requirements of ISO 14443 for contactless smart card technology. It is also Flash-upgradeable meaning that the firmware can be easily and effectively updated when appropriate.
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