Designed and manufactured by Inner Range, the SIFER reader is a multi-drop RS-485 based reader that employs 128 bit AES encryption from the card through to the door module, providing a far superior level of security than that of traditional Wiegand based card readers. SIFER readers utilise the Mifare DESfire EV1 card format.
 
Three card ordering options are available:
SIFER-P: Pre-programmed 'stock' cards with card number printed. The most cost-effective option but card customisation is not allowed.
SIFER-U: User Programmable cards that allow an installer to customise the card number, site code and use their own encryption key. Printed with factory card number.
SIFER-C: Custom batch orders configured by the factory according to the specified card number range, site code, encryption key and printing options. Cards cannot be re-programmed at a later stage by the installer or the factory.