How to Wire a Cat6 RJ45 Ethernet Jack - HandymanHowto Wiring a Cat6 Ethernet jack almost the same as a wiring a Cat5e jack, however Cat6 rated RJ45 Ethernet jacks must be used with Cat6 cable to realize the full 10 Gigabit bandwidth capabilities. These Cat6 RJ45 jacks have color coded wiring labels for the T568A (upper band) and T568B (lower band) wiring standards and snap-on covers: How to Make a Category 6 Patch Cable - lanshack Un-twist each pair, and straighten each wire between the fingers. 4. Cat 6 cable has a center spine that needs to be removed. Pull on the spine and fold the pairs back. Then cut the spine as close to the cables end as possible. 5. Place the wires in the order of one of the two diagrams shown above (568B or 568A).