Ethernet 10BaseT or 100BaseT Crossover Cable.



Ethernet 1000 BaseT Network Cable

For a straight through cable, make both ends identical to the column marked Straight Through.

For a crossover, make one side like the column marked Straight Through, and the other side like the column marked Crossover.



Straight Through Crossover Pins on plug face (jack is reversed)
Pair 2 Tip
white/orange stripe
Pair 3 Tip
white/green stripe
Pair 2 Ring
orange solid
Pair 3 Ring
green solid
Pair 3 Tip
white/green stripe
Pair 2 Tip
white/orange stripe
Pair 1 Ring
blue solid
Pair 4 Tip
white/brown stripe
Pair 1 Tip
white/blue stripe
Pair 4 Ring
brown solid
Pair 3 Ring
green solid
Pair 2 Ring
orange solid
Pair 4 Tip
white/brown stripe
Pair 1 Ring
blue solid
Pair 4 Ring
brown solid
Pair 1 Tip
white/blue stripe




T1 Crossover Cable 

Pin out view facing the cable end.

 

       

RJ45

         
                 
        12345678 Cable End A
       

45312678

Cable End B

 

To make a T1 crossover cable you will need an RJ45 crimping tool and at least one RJ45 end. 

 

Although shielded T1 cable is the ideal, you will find that using a Category 5  (CAT5) patch cable will work just fine with out any issues.

 

The data pins are 1, 2, 4, and 5.   The third pin is ground which is frequently unused.

Pins 6,7 & 8 are unused.

 

 

Cable End 1 Other End of Cable

PIN

Connects to PIN

1 4
2 5
4 1
5 2