Appendix A — Specifications
IF1 Fixed RFID Reader Series User Manual 71
Port Pin Assignments
Use this section to understand the port pin assignments for the ports
located on the reader.
GPIO Port
The GPIO port allows GPIO communications with your reader. The
GPIO port is standard with two-antenna port options of the reader, and
optional with the integrated antenna options of the reader.
GPIO Port Pin Assignments
Pin Function Description
1 +5 VDC +/-10% Non-isolated wetting supply, 300 mA max
2 HOST_RX1 Non-isolated host RS232 (output from IF1)
3 HOST_TX1 Non-isolated host RS232 (input from IF1)
4NC
5 GND Non-isolated signal ground
6NC
7NC
8NC
9 ISO_V- Isolated common return for GPIO input and
outputs
10 ISO_V- Isolated common return for GPIO input and
outputs
11 GP output 0+ Isolated GP output (open collector, 30 V max,
40 mA maximum continuous)
12 GP output 1+ Isolated GP output (open collector, 30 V max,
40 mA maximum continuous)
13 GP input 0+ Isolated GP input (28 VDC maximum,
V
in low
= 0.8 V max, V
in high
= 4.5 V max
1
11
10
5
15
6