AAEON PCM-QM77 - Manual (Page 49)

C o m p a c t B o a r d P C M - Q M 7 7
Chapter 2 Quick Installation Guide 2-34
6 NC
7 NC
8 NC
9 NC/+5V/+12V PWR +5V/+12V
10 NC
Note:
COM2 RS-232/422/485 can be set by BIOS setting. Default is
RS-232. COM2 Pin 9 function can be set by JP6.
2.35 COM Port 1 (CN16)
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