Instruction manual
2-11
Hardware Setup
USB Connectors
The mainboard provides an EHCI 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.
Serial Port Connector
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
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
IEEE 1394 Port (optional)
The back panel provides one standard IEEE 1394 port. The standard IEEE 1394 port
connects to IEEE 1394 devices without external power. The IEEE 1394 high-speed
serial bus complements USB by providing enhanced PC connectivity for a wide range
of devices, including consumer electronics audio/video (A/V) appliances, storage
peripherals, other PCs, and portable devices.
1394 Port