157 Appendix D
D.17 COM2 (CN12)
D.18 COM3 RS-232 serial port (CN13)
Table D.20: COM2 (CN12)
Pin Signal RS-422 RS-485l
1 DCD TX- DATA-
2RX TX+ DATA+
3TX RX+
4DTR RX-
5GND GND
6DSR
7RTS
8CTS
9 RI (RI/+5V/+12V
Table D.21: COM3 RS-232 serial port (CN13)
Pin Signal Pin Signal
1 DCD 2 RXD
3TxD 4 DTR
5GND 6 DSR
7 RTS 8 CTS
9 RI (RI/+5V/+12V
