Ieee1394 port (optional), Serial port connector: com 1, Vga connector – Intel KM4AM User Manual
Page 22: Pin male din connector

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MS-6734 M-ATX Mainboard
IEEE1394 Port (Optional)
The back panel provides one standard IEEE 1394 port. The standard IEEE1394 port
connects to IEEE1394 devices without external power. The IEEE1394 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.
IEEE1394 Port
Serial Port Connector: COM 1
The mainboard offers one 9-pin male DIN connector as serial port COM 1. 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
VGA Connector
The mainboard provides a DB 15-pin female connector to connect a VGA monitor.
VGA Connector
(DB 15-pin)
1
5
11
15
Pin
Signal Description
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