
RA0002 - Technical Information Manual
12
Input Electrical Description
The following diagram shows the equivalent schematics of the input stage of the RA0002 module, i.e GPI0.
Fig. 2.3: Input electrical diagram
The terminals V +, GPI0, RTN are the card’s interface toward the external devices.
Providing a voltage level between 5÷36 V on GPI 0, the result is a signal that activates the low-level GPI/O 0 of the
reader connected to the RA0002 module.
Reader input interface
In the following example, the power of the reader is used to enable the GPI/O via the command given by the switch.
Fig. 2.4: Reader input interface
RA0002 module
RA0002 module