Com Port 2 (Cn15) - Aaeon PCM-QM77 User Manual

2.4.15

COM Port 2 (CN15)

Pin
1
2
3
4
5
6
7
8
9
10
Pin
1
2
3
4
Chapter 2 – Hardware Information
DCD
TX
GND
RTS
RI/+5V/+12V
RS-232
Pin Name
DCD
RX
TX
DTR
GND
DSR
RTS
CTS
RI/+5V/+12V
NC
1
RS422_TX-
RS422_RX+
GND
NC
NC/+5V/+12V
9
RS-422
Pin Name
RS422_TX-
RS422_TX+
RS422_RX+
RS422_RX-
1 2
RX
DTR
DSR
CTS
NC
9 10
Signal Type
IN
IN
OUT
OUT
GND
IN
OUT
IN
IN/ PWR
2
RS422_TX+
RS422_RX-
NC
NC
NC
10
Signal Type
OUT
OUT
IN
IN
Signal Level
± 5V
± 5V
± 5V
+5V/+12V
Signal Level
± 5V
± 5V
28