User Manual

SubCompact Board GENE-U15B

Chapter 2 Quick Installation Guide 2-13

8 X-

9 X+

2.19 RS-232 Serial Port Connector (CN11)

Pin Signal

1 DCDA

2 RXA

3 TXA

4 DTRA

5 GNDA

6 DSRA

7 RTSA

8 CTSA

9 RIA

2.20 RS-232/422/485 Serial Port Connector (CN12)

Pin Signal

1 DCDB

2 DSRB

3 RXB

4 RTSB

5 TXB

6 CTSB

7 DTRB

8 RIB

9 GND