Ports and Connector Pin-Outs : Dell Inspiron 2500 Systems
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
USB Connectors
Use the USB connectors 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.
Pin
Signal
Definition
1
VCC
Cable power
2
–Data
N/A
3
+Data
N/A
4
Ground
Cable ground
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