Installation manual Reader
28
Modifications, misprints and errors excepted.
English
4.
Connections and displays
Allocation of the GPIO interface cable (Order-No. 52010125, 52010126)
The digital inputs and outputs are communicated via two eight-pin sockets in A-coding with M12 connection
threads. The inputs are double isolated from the power supply of the reader and can be operated irrespective of
the polarity of the input signal. For this reason there is a common pin for the inputs (INP_CMN). The connection
variants for the inputs are shown below. Depending on the application, the power to the inputs can be double insulated
from the external power supply to the reader, or not double insulated from it.
Figure: Inputs double insulated
