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Serial Port
The mainboard offers two 9-pin male DIN connectors as serial ports. The
ports are 16550A high speed communication ports that send/receive 16 bytes
FIFOs. You can attach a serial mouse or other serial devices directly to the
connector.
1 2 3 4 5
6 7 8 9
9-Pin Male DIN Connector
1
2
9
COM2
Introducing Mainboard
Serial Port Pin Definition
PIN
SIGNAL
DESCRIPTION
1
DCD
Data Carry Detect
2
SIN
Serial In or Receive Data
3
SOUT
Serial Out or Transmit Data
4
DTR
Data Terminal Ready
5
GND
Ground
6
DSR
Data Set Ready
7
RTS
Request To Send
8
CTS
Clear To Send
9
RI
Ring Indicate
2-15
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