Installation and Troubleshooting Guide

Table B-2.SerialConnectorPinAssignments
Video Connector
You can attach a VGA-compatible monitor to the system's integrated video controller using a 15-pin high-density D-subminiature connector on the system front
or back panel. FigureB-3 illustrates the pin numbers for the video connector and TableB-3 defines the pin assignments for the connector.
Figure B-3. Video Connector Pin Numbers
Table B-3. Video Connector Pin Assignments
USB Connectors
The system's USB connectors support USB-compliant peripherals such as keyboards, mice, and printers and may also support USB-compliant devices such as
diskette drives and optical drives. FigureB-4 illustrates the pin numbers for the USB connector and TableB-4 defines the pin assignments for the connector.

Pin

Signal

I/O

Definition
1
DCD
I
Data carrier detect
2
SIN
I
Serial input
3
SOUT
O
Serial output
4
DTR
O
Data terminal ready
5
GND
N/A
Signal ground
6
DSR
I
Data set ready
7
RTS
O
Request to send
8
CTS
I
Clear to send
9
RI
I
Ring indicator
Shell
N/A
N/A
Chassis ground
NOTE: Installing a video card automatically disables the system's integrated video controller.

Pin

Signal

I/O

Definition
1
RED
O
Red video
2
GREEN
O
Green video
3
BLUE
O
Blue video
4
NC
N/A
No connection
5–8, 10
GND
N/A
Signal ground
9
VCC
N/A
Vcc
11
NC
N/A
No connection
12
DDC data out
O
Monitor detect data
13
HSYNC
O
Horizontal synchronization
14
VSYNC
O
Vertical synchronization
15
NC
N/A
No connection
NOTICE: Do not attach a USB device or a combination of USB devices that draw a maximum current of more than 500 mA per channel or +5 V. Attaching
devices that exceed this threshold may cause the USB connectors to shut down. See the documentation that accompanied the USB devices for their
maximum current ratings.