MSI MS-7204, Instruction Manual

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2-11
Hardware Setup
Serial Port Connector: COM Port
The mainboard offers one 9-pin male DIN connector COM Port. It
’
s a 16550A
high speed communication port that send/receive/ 16 bytes FIFOs. You can attach a
serial mouse or other serial device directly to it.
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
Pin Definition
9-Pin Male DIN Connector
COM Port
1 2 3 4 5
6 7 8 9
USB Connectors
The mainboard provides an OHCI (Open Host Controller Interface) Universal
Serial Bus root for attaching USB devices such as keyboard, mouse or other USB-
compatible devices. You can plug the USB device directly into the connector.
USB Ports
1 2 3 4
5 6 7 8
PIN SIGNAL DESCRIPTION
1 VCC +5V
2 -Data 0 Negative Data Channel 0
3 +Data0 Positive Data Channel 0
4 GND Ground
5 VCC +5V
6 -Data 1 Negative Data Channel 1
7 +Data 1 Positive Data Channel 1
8 GND Ground
USB Port Description