2.4.1
COM Port 1/ Port 2 (CN1/CN2)
Note: CN1 is COM Port 2; and CN2 is COM Port 1.
Pin
Pin Name
1
DCD
2
DSR
3
RX
4
RTS
5
TX
6
CTS
7
DTR
8
RI
9
GND
Chapter 2 – Hardware Information
1
2
3
4
5
6
7
8
9
RS-232
Signal Type
Signal Level
IN
IN
IN
OUT
OUT
IN
OUT
IN
GND
13