I get questioned about the T568A and T568B Twisted-pair Ethernet Standards all the time; usually from people trying to do it themselves.
While I have them memorized, others may not. So, this little guide is for those who haven’t worked with the standards long enough to have them memorized.
The T568A and T568B Twisted-pair Ethernet Standards utilize a 8P8C (8 position 8 contact or 8 position 8 conductor) modular connector, known as a RJ45 Plug. The RJ45 Plug is for use with a RJ45 Registered Jack.
Crossover cables are an entirely different pattern; not covered here.