2-15
Hardware Setup
System Status LED Header: J11
Connect an LED to this header and the LED will lighten when the CPU, system,
or power fan shuts down.
Serial Port Connector: COM 2
The mainboard provides 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.
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
COM 2
1
9
2
8
I2C Bus Connector: I2CCON1
The mainboard provides one I2C (also known as I
2
C) Bus connector for users
to connect to System Management Bus (SMBus) interface.
I2CCON1
J11