Instruction manual
2-12
MS-6390 M-ATX Mainboard
6390 M-ATX Mainboard
Serial Port Connector: COM A
The mainboard provides one 9-pin serial port connector COM A. This
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.
VGA DB 15 Pin Connector
One DB 15-pin VGA connector is provided for connection to a VGA
monitor.
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
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
Pin Definition
DB 15-Pin Female Connector
5 1
15 11
COM A
1 2 3 4 5
6 7 8 9