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Serial Port Connector: COM A & COM B
The mainboard offers one 9-pin male DIN serial port COM A and one 9-
pin COM B pin header. 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 them.
1 2 3 4 5
6 7 8 9
9-Pin Serial Connectors
Joystick/Midi Connectors
You can connect a joystick or game pad to this connector.
Audio Port Connectors
Line Out is a connector for Speakers or Headphones. Line In is used for
external CD player, Tape player, or other audio devices. Mic is a connector for
microphones.
1/8" Stereo Audio Connectors
Hardware Setup
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
Line Out Line In MIC
2-9
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