AAEON PCM-QM77 - Manual (Page 57)

C o m p a c t B o a r d P C M - Q M 7 7
Chapter 2 Quick Installation Guide 2-42
2.42 COM Port 6 (CN23)
RX
DTR
DSR
CTS
NC
DCD 1 2
9 10
TX
GND
RTS
RI/+5V/+12V
RS-232
Pin Pin Name Signal Type Signal Level
1 DCD IN
2 RX IN
3 TX OUT ±9V
4 DTR OUT ±9V
5 GND GND
6 DSR IN
7 RTS OUT ±9V
8 CTS IN
9 RI/+5V/+12V IN/ PWR +5V/+12V
10 NC
RS485_D+
NC
NC
NC
NC
RS485_D- 1 2
9 10
NC
GND
NC
NC/+5V/+12V
RS-485