Owner's manual

Half-Size SBC HSB- CV1P
Chapter 2 Quick Installation Guide 2-16
Pin
Signal
Pin
Signal
1 DCD1 2 RXD1
3 TXD1 4 DTR1
5 GND 6 DSR1
7 RTS1 8 CTS1
9 RI1 10 NC
2.31 RS-232/422/485 Serial port2 Connector (COM2)
RS-232:
Pin
Signal
Pin
Signal
1 DCD2 2 RXD2
3 TXD2 4 DTR2
5 GND 6 DSR2
7 RTS2 8 CTS2
9 RI2/+5V/+12V 10 NC
RS-485:
Pin
Signal
Pin
Signal
1 TXD- 2 NC
3 TXD+ 4 NC
5 GND 6 NC
7 NC 8 NC
9 NC/+5V/+12V 10 NC
RS-422:
Pin
Signal
Pin
Signal
1 TXD- 2 RXD+