Owner's manual

Half-Size SBC HSB- CV1P
Chapter 2 Quick Installation Guide 2-17
3 TXD+ 4 RXD-
5 GND 6 NC
7 NC 8 NC
9 NC/+5V/+12V 10 NC
2.32 RS-232 Serial port3 Connector (COM3)
Pin
Signal
Pin
Signal
1 DCD3 2 RXD3
3 TXD3 4 DTR3
5 GND 6 DSR3
7 RTS3 8 CTS3
9 RI3 10 NC
2.33 RS-232 Serial port4 Connector (COM4)
Pin
Signal
Pin
Signal
1 DCD4 2 RXD4
3 TXD4 4 DTR4
5 GND 6 DSR4
7 RTS4 8 CTS4
9 RI4 10 NC
2.34 Infrared Connector (IR1)