Serial Ports (COM1)
IF2 Network Reader User's Manual
GPIO Port Pin Assignments (continued)
Pin
Description
24
12VDC
25
-Output 4
Pin 9
Serial Port Pin Assignments
Pin
Description
1
NC
2
Receive data (RXD)
3
Transmit data (TXD)
4
NC
5
Signal ground
6
NC
7
Request to send (RTS)
8
Clear to send (CTS)
9
NC
Active Polarity
Low-RTN
Pin 1
Active Polarity
Low
Low
Appendix A — Specifications
85
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