How to Wire Keystone Jack - CableOrganizer Comments about How to Wire Keystone Jack: Some jacks the wire goes thru the clips from the top, not the end. I like to position the wire at 90 degrees (from the top) of the jack, and run pairs in an "X" pattern. This way, the twists run all the way to the punchdowns.4.7/5(3) How to Punch Down RJ45 Keystone Jacks | Computer Cable Store Step 2: Straighten the pairs out completely and lay them over the top of the keystone jack noting the color pattern for the 568b wiring. Note: Each keystone jack is slightly different in how they are labeled and how the colors are arranged. The 568B standard is most commonly used and ends of the cable must have the same standards to communicate.