Serial Port Connectors: Com A & Com B; Joystick/Midi Connectors; Audio Port Connectors - MSI MS-6551 User Manual

Chapter 2
Serial Port Connectors: COM A & COM B
The mainboard offers two 9-pin male DIN connectors for serial port COM
A and COM B. 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 Male DIN 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
Note: Details on the application of 6-channel audio can be acquired in
Appendix A.
Pin Definition
PIN SIGNAL
1 DCD
2 SIN
3 SOUT
4 DTR
5 GND
6 DSR
7 RTS
8 CTS
9 RI
Line Out Line In
2-10
DESCRIPTION
Data Carry Detect
Serial In or Receive Data
Serial Out or Transmit Data
Data Terminal Ready)
Ground
Data Set Ready
Request To Send
Clear To Send
Ring Indicate
MIC