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Ethernet Cable Color Coding Diagram
The T-568A and T-568B are two standards set by the TIA/EIA for the crimping of RJ-45 connectors.
The TIA/EIA (Telecommunications Industry Association/Electronics Industries Alliance) defines most of the standards for network cabling.
Ethernet Cables have 8 color coded wires. There are two standards: T-568A and T-568B
| # | T-568A | T-568B |
|---|---|---|
| 1 | Green/White | Orange/White |
| 2 | Green | Orange |
| 3 | Orange/White | Green/White |
| 4 | Blue | Blue |
| 5 | Blue/White | Blue/White |
| 6 | Orange | Green |
| 7 | Brown/White | Brown/White |
| 8 | Brown | Brown |
If you wired both ends of the cable the same then it is called a straight through cable. This is the most common type of cable and are used to connect computer to switches or routers.
A Crossover cable can be used to connect two devices together directly. It reverses the sending and receiving pairs on one the one end of the cable. To create a crossover cable, you need to wire the one end of the cable with T-568A and the other end with T-568B.
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