Description
26
Task and function
The devices are used for access control and management of access
authorisations in buildings. The system families are based on RFID (Radio
Frequency Identification) technology and differ in terms of the frequency used.
ELS uses 125 kHz. ENiQ and DOM Tapkey use 13.56 MHz.
Data is transmitted inductively (via RFID) between the locking medium, e. g.
transponder and reader, by means of a coil that is present in the reader and in
the locking medium. Only one of the devices (reader or transponder) has to
have a power supply to guarantee function. For the ENiQ, ELS and DOM
Tapkey system families, the locking medium does not require a power supply
(with the exception of Smartphones).
The devices have a buzzer (acoustic signalling device) for the access control
functions and this can be switched off via the software. For the system
functions (e. g. battery warning levels) the buzzer cannot be switched off.
The following operating modes may be available depending on the device:
Offline:
In this operating mode, the available devices are programmed from the
immediate vicinity (0.5 cm to 10 m).
Online:
In this operating mode, the available devices are programmed wirelessly with
the assistance of communication modules (RF Net Manager) which have a
network connection.
Data on Card:
In this operating mode, the access control authorisations are saved in the
locking medium rather than in the device. The access control devices then
read corresponding access authorisations from the transponder.
