Pin
Pin Name
1
+5VSB
2
USB_D-
3
USB_D+
4
GND
2.3.6 COM Port 4 (D-SUB 9) (CN7)
Pin
Pin Name
1
DCD
2
RX
3
TX
4
DTR
5
GND
6
DSR
7
RTS
8
CTS
9
RI
2.3.7 COM Port 3 (D-SUB 9) (CN9)
Chapter 2 – Hardware Information
Signal Type
PWR
DIFF
DIFF
GND
1
5
6
9
Signal Type
IN
IN
OUT
OUT
GND
IN
OUT
IN
IN
1
5
6
9
Signal level
+5V
Signal level
± 9V
± 9V
± 9V
12