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X8DTU-LN4F+ Motherboard User's Manual
Serial Ports
Two COM connections (COM1 & COM2)
are located on the motherboard. COM1
is located on the Backplane I/O panel.
COM2 is located next to the ICH10R
South Bridge to provide additional se-
rial connection support. See the table
on the right for pin defi nitions.
Serial COM) Ports
Pin Defi nitions
Pin # Defi nition Pin # Defi nition
1 DCD 6 DSR
2 RXD 7 RTS
3 TXD 8 CTS
4 DTR 9 RI
5 Ground 10 N/A
COM1
COM2
2
1
Video Connectors
A Video (VGA1) port is located next to
COM1 on the I/O backplane. Another
VGA connector (VGA2) provides front
accessible video display. VGA2 is
available on a 2U system only. When
VGA2 is enabled, VGA1 will be dis-
abled. Refer to the board layout below
for the locations.
X8DTU-LN4F+
Rev. 2.0
2
1
3
4
1. COM1
2. COM2
3. VGA1
4. VGA2 (for 2U Systems only)