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PC/104 Module PFM-CVS

Chapter 2 Quick Installation Guide 2-26

2 N.C

3 RX+ IN

4 N.C

5 TX+ OUT ±5V

6 N.C

7 RX- IN

8 +5V/+12V PWR +5V/+12V

9 GND GND

RS-485

Pin Pin Name Signal Type Signal Level

1 B (Data-) I/O ±5V

2 N.C

3 N.C

4 N.C

5 A (Data+) I/O ±5V

6 N.C

7 N.C

8 +5V/+12V PWR +5V/+12V

9 GND GND

2.27 COM3 RS-232 Connector (COM3)