Pin Assignments for I/O Connectors: Dell Latitude C540/C640 Service Manual
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Pin Assignments for I/O Connectors
Dell™ Latitude™ C540/640 Service Manual
USB Connector
Pin
1
2
3
4
Serial Connector
file:///F|/Service%20Manuals/Dell/Latitude/c540-640/pinouts.htm (1 of 10) [2/28/2004 7:57:58 AM]
Signal
VCC
–Data
+Data
Ground