10/16/2026
You bought a bag of a hundred RJ45 ends. Here's how not to waste half of them.
Both pin orders are in the slides. Save this and pull it up next time you've got the crimper out.
Hold the plug clip down, gold pins up, cable pointing at you. Pin 1 is on the left.
T568B: white/orange, orange, white/green, blue, white/blue, green, white/brown, brown.
T568A: white/green, green, white/orange, blue, white/blue, orange, white/brown, brown.
Use the same order on both ends and you've got a straight-through cable, the kind used most often for patch cords. A on one end and B on the other makes a crossover.
Before you squeeze, look through the clear plastic and check the order one more time. That habit alone saves a lot of ends.
The full diagram for both standards, plus the crossover, is on our site:
incentre.net/go/cable-colors