Ethernet Wiring Diagram T568a. Pin 7 White and Brown wire. Both T568A and T568B provide wiring schemes for terminating twisted-pair copper network cable CAT cables to 8-position RJ45 jacks and connectors.
This makes the process of assembling circuit easier. T568A is designed for backward compatibility with older telephone wires. Ethernet Cable Wiring Diagram Recall that there are two standards for the colors in the RJ45 specification.
What is the difference between the two.
T568A was specified by TIAEIA-568-A wiring standards in 1995. Pin 7 White and Brown wire. Its all about the termination. The swapped wiring order pairs are explained further below.