User`s manual

2-10
MS-9625 M-ATX Workstation Board
USB Ports
The rear panel provides four UHCI (Universal Host Controller Interface) Universal
Serial Bus roots for attaching USB devices such as keyboard, mouse or other USB-
compatible devices. You can plug the USB device directly into the connector.
Serial Port
The mainboard offers one 9-pin male DIN connector as the serial port. 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 the connector.
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
1 2 3 4 5
6 7 8 9
PIN SIGNAL DESCRIPTION
1 VCC +5V
2 -Data 0 Negative Data Channel 0
3 +Data0 Positive Data Channel 0
4 GND Ground
USB Port Description
USB Port
1 2 3 4