AAEON GENE-QM87 - Manual (Page 44)

S u b C o m p a c t B o a r d G E N E - Q M 8 7
Chapter 2 Quick Installation Guide 2-31
2.38 COM Port 4 (CN21)
DCD
DSR
RX
RTS
TX
CTS
DTR
RI
GND
Pin Pin Name Signal Type Signal Level
1
DCD IN
2
DSR IN
3
RX IN
4
RTS OUT ±9V
5
TX OUT ±9V
6
CTS IN
7
DTR OUT ±9V
8
RI IN
9 GND GND
2.39 COM Port 3 (CN22)
DCD
DSR
RX
RTS
TX
CTS
DTR
RI
GND