Chapter 1
Serial Port Connector: COM A
The mainboard offers one 9-pin male DIN connector as serial port COM
A. 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 Definition
1 2 3 4 5
6 7 8 9
9-Pin Male DIN 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 Rl
Ring indicate
VGA DB 15 Pin Connector
One DB 15-pin VGA connector is supplied for connection to a VGA
monitor.
Pin Definition
DB 15-Pin Female Connector
Analog Video Display Connector (DB-15S)
PIN
SIGNAL DESCRIPTION
1 Red
2
Green
3 Blue
4
Not used
5
Ground
6 Ground
7 Ground
8 Ground
9 Power
10 Ground
11 Not used
12
SDA
13 Horizontal Sync
14 Vertical Sync
15
SCL
2-10