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How to wire a 10BaseT or 100BaseT connector with Category 5 cable
and RJ45 connectors using USOC 568 wiring standards:

T568 B RJ45 Wiring
Pin T568B Pair Wire T568B Color Pins on plug face (jack is reversed)
1 2 tip
white/orange stripe

2 2 ring
orange solid
3 3 tip
white/green stripe
4 1 ring
blue solid
5 1 tip
white/blue stripe
6 3 ring
green solid
7 4 tip
white/brown stripe
8 4 ring
brown solid

T568 A RJ45 Wiring
Pin T568A Pair Wire T568A Color Pins on plug face (jack is reversed)
1 3 tip
white/green stripe

2 3 ring
green solid
3 2 tip
white/orange stripe
4 1 ring
blue solid
5 1 tip
white/blue stripe
6 2 ring
orange solid
7 4 tip
white/brown stripe
8 4 ring
brown solid

 
Eg:
T568B



Cable Pairs
Pair Wire Color  
1 tip white/blue stripe
ring blue solid
2 tip white/orange stripe
ring orange solid
3 tip white/green stripe
ring green solid
4 tip white/brown stripe
ring brown solid

 

 
 


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