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2-11
Serial Port Connector: COM A & COM B
The mainboard has two 9-pin male DIN connectors for serial port COM
A and COM B. You can attach a serial mouse or other serial devices.
1 2 3 4 5
6 7 8 9
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
9-Pin Male DIN Connectors
Pin Definition
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