CEStronics Omega Flex Fitting And Operating Instructions page 28

Operating the door lock
7.1.1 DESFire EV-1 in security mode (optional)
The data transmission between the locking device and the
locking medium is encrypted. Only locking media that are
authenticated by the device are authorized to lock or unlock.
These locking devices (1) will not accept any foreign
transponders (2); they do not respond to any locking or
unlocking attempt with other locking media.
A DESFire EV-1 locking medium manufactured by CEStronics
operating in the security mode can be used in other systems
(3) requiring this type of transponder. This ensures the multi-
application capability of the locking medium.
Fig. 13 - DESFire operating principle
7.1.2 DESFire EV-1 in standard mode
Locking media operating in the standard mode behave like any
other ISO 14443 transponders. For authorization, the UID of
the locking medium is used.
If you manage your systems with the CEStronics software, you
can use both DESFire EV-1 variants with the CEStronics
software.
Move your authorized locking medium into the reading

range of the fitting.
Page 28 of 51 OMEGA FLEX Radio switch