Front Usb Connector: Usb2; Serial Port Connector: Com 2 - MSI MS-9125 User Manual

Front USB Connector: USB2

The mainboard provides one front Universal Serial Bus connector for
users to connect to USB ports.

Serial Port Connector: COM 2

The mainboard offers one 9-pin header as serial port COM 2. The port is
a 16550A high speed communication port that sends/receives 16 bytes FIFOs.
You can attach a serial mouse or other serial devices directly to it.
Hardware Setup
Pin Definition
Pin Description Pin Description
1 USBPWR 2 USBPWR
3 USBP2- 4 USBP3-
5 USBP2+ 6 USBP3+
7 GND 8 GND
9 NC 10 GND
9
1
10 2
USB2
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
COM 2
9 7 5 3 1
8 6 4 2
2-19