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Info - Ethernet Cable Specification

I keep looking for this information on the web. I used to have a great link to a website with color diagrams, but it's gone to the bit-bucket.

This is a normal cable, when looked at from the bottom - the part with the gold showing, and no "plastic thing" on it. Both ends of the cable looks the same.
                         
   
                         
   
                         
   
                         
   

This is one end of a cross-over cable. The other end looks like the previous diagram.
this is untested - may be incorrect
                         
   
                         
   
                         
   
                         
   

RJ-45-to-RJ-45 Straight-Through Ethernet Cable Pinouts
RJ-45
Pin
Signal Direction RJ-45
Pin
1 TX+ -> 1
2 TX- -> 2
3 RX+ <- 3
4 - - 4
5 - - 5
6 RX- <- 6
7 - - 7
8 - - 8

RJ-45-to-RJ-45 Crossover Ethernet Cable Pinouts
RJ-45
Pin
Signal Direction RJ-45
Pin
Signal
1 TX+ -> 3 RX+
2 TX- -> 6 RX-
3 RX+ <- 1 TX+
4 - - 4 -
5 - - 5 -
6 RX- <- 2 TX-
7 - - 7 -
8 - - 8 -

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