2-12
650GLMS Micro ATX Mainboard
Serial Port Connectors: COMA
The mainboard offers one 9-pin male DIN connector as serial port COM
A. This port is 16550A high speed communication ports that send/receive 16
bytes FIFOs. You can attach a serial mouse or other serial device 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
9-Pin Male DIN Connector
1 2 3 4 5
6 7 8 9
VGA Connector (optional)
The mainboard provides a DB 15-pin female connector to connect a
VGA monitor.
Pin
Signal Description
1
RED
2
GREEN
3
BLUE
4
N/C
5
GND
6
GND
7
GND
8
GND
9
+5V
10
GND
11
N/C
12
SDA
13
Horizontal Sync
14
Vertical Sync
15
SCL
VGA Connector
(DB 15-pin)
1
5
11
15