Information module or RJ45 connection plug with twisted-pair lines connected to T568A or T568B structure. In T568A, 8 lines are respectively defined as connected with it: green and white and green, white Orange, blue and white, blue, Orange and white, Brown, Brown. The T568B, connected with 8 lines are respectively defined as: white-Orange, orange; white and green, and blue;, white, and blue and green, white, Brown, Brown. Definition of differential transmission line is white-Orange, white and orange cable green, white and green cable blue cable, white, Brown and blue and brown wires.

For best compatibility, T568B standard is generally used when making the straight line. RJ45 plug pins should be carried out according to the following methods in the order observed: RJ45 plug positive (PIN side) himself, has copper needles towards the top, connect one end of the cable toward the bottom, from left to right, 8 bronze PIN number is 1～8.