CEStronics WT-I Fitting And Operating Instructions page 46

Operating the wall terminal
7.2.2 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 (1) into the reading

range of the wall terminal. This distance is about 50 mm.
Fig. 26 – permitted RF ranges
The reader module (2) identifies the locking medium. The wall
terminal sends a short signal to signal the enable status.
During the opening time you can open the door. During this
opening time, the wall terminal does not respond to any other
locking media.
If you are using a locking medium that is not authorized to enable
this wall terminal, the light of the wall terminal flashes red four
times and you hear four successive beeps. In this case, the wall
terminal is not coupled.
Page 46 of 80 OMEGA FLEX wall terminals WT-I/WT-II