How to Wire a Cat6 RJ45 Ethernet Jack - HandymanHowto I pulled an extra 2 feet of Cat6 cable out the wall for several reasons: Easier access for wiring the Ethernet jack; in case I need to cut off the cable and rewire the jack; a short service loop to remove the Ethernet wall plate. How to Wire a Cat6 Ethernet Jack. Wiring a Cat6 Ethernet jack almost the same as a wiring a Cat5e jack, however Cat6 How to Install an Ethernet Jack for a Home Network Jul 24, 2017RJ-45 Ethernet Jack Punchdown Wiring. Wiring an RJ-45 Ethernet jack is easy to do if you’re attentive to detail and follow a couple of guidelines: Strip about 2 inches of outer sheath from the cable. The four wire pairs should remain twisted as closely as possible to the punch down pins for maximum signal integrity.