User Manual

PC/104 Module PFM-CVS Rev. B
Chapter 2 Quick Installation Guide 2-26
3 RXD2 IN
4 RTS2 OUT ±9V
5 TXD2 OUT ±9V
6 CTS2 IN
7 DTR2 OUT ±9V
8 RI2 IN
9 GND GND
RS-422
Pin Pin Name Signal Type Signal Level
1 TX- OUT ±5V
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