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The mainboard has a 9-pin male DIN connector for serial port COM A. This
port is a 16550A high speed communication port that send/receive 16 bytes
FIFOs. You can attach a mouse or a modem cable directly into this connec-
tor.
PIN DEFINITION
PIN
1
2
3
4
5
6
7
8
9
Note:
5
4
9
3
8
7
2
6
1
COM B
Serial Port (9-pin Male)
SIGNAL
DCD(Data Carry Detect)
SIN(Serial In or Receive Data)
SOUT(Serial Out or Transmit Data)
DTR(Data Terminal Ready)
GND
DSR(Data Set Ready)
RTS(Request To Send)
CTS(Clear To Send)
RI(Ring Indicate)
There's another serial port connector (COM B),
which is located on the mainboard. Connect a
serial port 9 pin male port into this connector.
2-14
COM A
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