Serial Port Connector: Com Port; Usb Connectors - MSI 915G Neo3-FIR User Manual

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.

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.
1 2 3 4
5 6 7 8
USB Ports
1 2 3 4 5
6 7 8 9
9-Pin Male DIN Connector
COM Port
Pin Definition
PIN SIGNAL
1 DCD
2 SIN
3 SOUT
4 DTR
5 GND
6 DSR
7 RTS
8 CTS
9 RI
PIN SIGNAL
1 VCC
2 -Data 0
3 +Data0
4 GND
5 VCC
6 -Data 1
7 +Data 1
8 GND
DESCRIPTION
Data Carry Detect
Serial In or Receive Data
Serial Out or Transmit Data
Data T erminal Ready)
Ground
Data Set Ready
Request T o Send
Clear To Send
Ring Indicate
USB Port Description
DESCRIPTION
+5V
Negative Data Channel 0
Positive Data Channel 0
Ground
+5V
Negative Data Channel 1
Positive Data Channel 1
Ground
Hardware Setup
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