Differences Between T568A And T568B Standards || Cat 5 Cable Wiring


Cat 5 Cable Wiring


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Differences Between T568A And T568B Standards

There are currently two wiring standards that are commonly accepted. They are the T568A and the T568B wiring standards. The differences between the T568A and T568B are very slight but none the less important. You will notice most of the differences lie in the pin assignments for each wire and not in the colors used.

When you are using the T568A wiring standard you will notice a slight difference between T568A and T568B. Using the T568A wiring standard connect the white/green wire to pin number one , Green to pin 2 , White/Orange to pin 3 , Blue to pin 4 , White/Blue to pin 5, Orange to pin 6, White/Brown to pin 7 , and Brown to pin 8.

Under the T568B wiring standards you will notice again the difference between T568A and T568B. Using the T568B wiring system calls for the White/Orange wire in pin 1, Orange in pin 2 , White/Green in pin 3 , Blue in pin 4, White/Blue in pin 5 , Green in pin 6 , White/brown in pin 7 and again Brown in pin 8.

The main difference between the T568A standard and the T568B standard is that the T568A standard reverses the orange and green connection wires. It does this so that it is more compatible with audio and voice transmissions over the cable lines.