Serial Port; Universal Serial Bus - HP Compaq 6735b Maintenance And Service Manual

Serial port

Pin
1
2
3
4
5
6
7
8
9

Universal Serial Bus

Pin
1
2
3
4
152 Chapter 9 Connector pin assignments
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Signal
Data carrier detect
Received data
Transmitted data
Data terminal ready
Signal ground
Data set ready
Request to send
Clear to send
Ring indicator
Signal
+5 VDC
Data -
Data +
Ground
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