A Connector Pin Assignments
This appendix contains the pin assignments for many computer and workstation connectors. Some of
these connectors may not be used on the product being serviced.
Ethernet BNC
Connector and Icon Pin Signal
1
2
Data
Ground
USB
Connector and Icon Pin Signal
1
2
3
4
+5 VDC
- Data
+ Data
Ground
Microphone
Connector and Icon (1/8” miniphone) Pin Signal
1 (Tip)
2 (Ring)
3 (Shield)
Audio_left
Audio_Right
Ground
Headphone
Connector and Icon (1/8” miniphone) Pin Signal
1 (Tip)
2 (Ring)
3 (Shield)
Audio_left
Power_Right
Ground
Ethernet BNC 129
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