Dell 4100 - Video Connector; Figure B-5. Pin Numbers for the Mouse Connector; Figure B-6. Pin Numbers for the Video Connector; Table B-4. Pin Assignments for the Mouse Connector

I/O Ports and Connectors B-5
Figure B-5 illustrates the pin numbers for the mouse
connector, and Table B-4 lists and defines the pin assign-
ments and interface signals for the mouse connector.
Figure B-5. Pin Numbers for the Mouse
Connector
Video Connector
The system uses a 15-pin high-density D-subminiature
connector on the back panel for attaching a video graph-
ics array (VGA)-compatible monitor to your computer.
The video circuitry on the system board synchronizes the
signals that drive the red, green, and blue electron guns in
the monitor.
NOTE: Installing a video card automatically disables the
system’s built-in video subsystem.
If you reconfigure your hardware, you may need pin
number and signal information for the video connector.
Figure B-6 illustrates the pin numbers for the video
connector, and Table B-5 lists and defines the pin assign-
ments and interface signals for the video connector.
Figure B-6. Pin Numbers for the Video
Connector
Table B-4. Pin Assignments for the Mouse
Connector
Pin Signal I/O Definition
1 MFDATA I/O Mouse data
2 NC N/A No connection
3 GND N/A Signal ground
4 FVcc N/A Fused supply voltage
5 MFCLK I/O Mouse clock
6 NC N/A No connection
5
3
1
2
4
6
shell
Table B-5. Pin Assignments for the Video
Connector
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 DDC N/A Vcc
11 NC N/A No connection
12 DDC
data out
O Monitor detect data
13 HSYNC O Horizontal synchro-
nization
14 VSYNC O Vertical synchroniza-
tion
15 DDC
clock out
O Monitor detect clock
Shell N/A N/A Chassis ground
1 — 5
6
10
11 — 15