AAEON PCM-QM77 - Manual (Page 62)

C o m p a c t B o a r d P C M - Q M 7 7
Chapter 2 Quick Installation Guide 2-47
2.43 COM Port 10 (CN31)
RX
DTR
DSR
CTS
NC
DCD 1 2
9 10
TX
GND
RTS
RI
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 IN
10 NC
2.44 COM Port 9 (CN32)
RX
DTR
DSR
CTS
NC
DCD 1 2
9 10
TX
GND
RTS
RI
Pin Pin Name Signal Type Signal Level