PRT12MF-DES PRT82MF PRT84MF Operating Manual.doc
2018-08-23
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2.1 RACS CLK/DTA mode
RACS CLK/DTA mode is dedicated for operation of reader with Roger access controllers. In this
mode the reader uses two communication lines called CLK and DTA for bidirectional transmission.
Each reader configured to the RACS CLK/DTA mode must have an unique address in range from 0
to 3. In RACS CLK/DTA mode LED and buzzer are controlled by communication protocol and no
additional control lines for this purpose are necessary. In case of communication loss with host
controller all reader LEDs are flashing.
Fig. 1 Connection of reader to access controller (RACS CLK/DTA)
2.2 Wiegand mode
In this mode reader transmits data using CLK and DTA lines which are respectively connected to
controller’s DATA0 and DATA1 input lines. The transmission is unidirectional while LEDs and buzzer
can be controlled by reader’s IN1 and IN2 inputs.
Fig. 1 Connection of reader to access controller (Wiegand)
