Dell Inspiron 4100 - Manual (Page 8)

USB Connector
Use the USB connector to attach one or more USB devices, such as a mouse, to the computer. USB is a peripheral standard that enables automatic detection
of USB-compliant peripheral devices.
Video Connector
Use the 15-pin video connector to attach an external monitor to the computer. If the image does not appear on the monitor immediately, press
.
Pin Signal I/O Definition
1 EXK_MSDATA I/O External keyboard/keypad/mouse data
2 KBD_DATA I Keyboard data
3 GND N/A Signal ground
4 EXK_MSPWR N/A External keyboard/keypad/mouse supply voltage
5 EXK_MSCLK I/O External keyboard/keypad/mouse clock
6 KBD_CLK I Keyboard clock
Shell N/A N/A Chassis ground
Pin Signal Definition
1 VCC Cable power
2 – Data N/A
3 +Data N/A
4 Ground Cable ground
Pin Signal I/O Definition