Transition Networks
SDSTX3110-121S-LRT User Guide
33745 Rev. A
https://www.transition.com
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1.5.3 10/100 Base-T(X) MDI/MDI-X Pin Assignments
Note:
“+” and “-” signs represent the polarity of the wires that make up each wire pair.
Pin Number
MDI port
MDI-X port
1
TD+(transmit)
RD+(receive)
2
TD-(transmit)
RD-(receive)
3
RD+(receive)
TD+(transmit)
4
Not used
Not used
5
Not used
Not used
6
RD-(receive)
TD-(transmit)
7
Not used
Not used
8
Not used
Not used
9