What is T568A standard?

What is T568A standard?

T568A and T568B are the wiring standards that define the pinout (connection order) for terminating twisted-pair network cable in eight-pin modular connector plugs and jacks. These wiring standards are one part of the TIA/EIA-568 telecommunications cabling standards.

Why does the government use T568A?

T568A wiring pattern is regarded as the preferred wiring pattern standard because it provides backward compatibility for both one pair and two pair USOC wiring schemes. The U.S. Government requires the use of the preferred T568A standard for wiring done under federal contracts.

What is difference between T568A and T568B?

The only difference between T568A and T568B is that the orange and green pairs are interchanged. T568A wiring pattern is recognized as the preferred wiring pattern for this standard because it provides backward compatibility to both one pair and two pair USOC wiring schemes.