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Updated Mar 05 2004

T568 10/100Mbps Wiring Standard

The pinouts for a cat 5 UTP crossover cable are as follows:
 

Connector 1
Pinout
Connector 2
Pinout
Colour
1
3
white orange
2
6
orange
3
1
white green
4
4
blue
5
5
white blue
6
2
green
7
7
white brown
8
8
brown

 

The pinouts for a cat 5 UTP T568A cable are as follows:
 

Connector 1
Pinout
Connector 2
Pinout
Colour
1
1
white green
2
2
green
3
3
white orange
4
4
blue
5
5
white blue
6
6
orange
7
7
white brown
8
8
brown

 

The pinouts for a cat 5 UTP T568B cable are as follows:
 

Connector 1
Pinout
Connector 2
Pinout
Colour
1
1
white orange
2
2
orange
3
3
white green
4
4
blue
5
5
white blue
6
6
green
7
7
white brown
8
8
brown


Where is pin 1?

Hold a connector so the cable is hanging down and the metal pieces are facing you.  Pin1 is on the left.



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