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2.4.13
COM Port 2, Port 6 (CN15/CN20)
Note: COM Port 2 and Port 6 Mode (RS-232/422/485) can be set by BIOS (see Chatper
3). Default setting is RS-232.
Pin 9 function can be set by COM2 Pin 9 Function Jumper (JP2) for Port 2 and COM6
Pin 9 Function Jumper (JP3) for Port 6.
Pin
Pin Name
1
DCD
2
RX
3
TX
4
DTR
5
GND
6
DSR
7
RTS
8
CTS
9
RI/+5V/+12V
10
NC
Chapter 2 – Hardware Information
RS-232 Mode
Signal Type
IN
IN
OUT
OUT
GND
IN
OUT
IN
IN/ PWR
Signal level
±5V
±5V
±5V
+5V/+12V
27
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