How to Rewire a Cat 6 Cable

Updated April 17, 2017

Gigabit local area networks (LANs) are typically built upon an infrastructure that uses CAT6 cabling to connect network devices such as routers and switches. Workstations and servers that connect to the network also need CAT6 patch cables to support gigabit network speeds. A CAT6 patch cable may eventually lose the plastic tab that locks the connector into the socket and network disconnects may occur as a result. Replace CAT6 patch cable connectors with broken tabs to prevent network connectivity issues.

Snip the damaged connector off of the CAT6 patch cable. Strip one inch of the protective covering from the same end of the patch cable. Strip 1/2-inch of insulation from each of the exposed wires in the cable.

Place the exposed wires that you just stripped into a new RJ45 CAT6 connector in the following order:

Pin 1 - White/Green wire

Pin 2 - Green wire

Pin 3 - White/Orange wire

Pin 4 - Blue wire

Pin 5 - White/Blue wire

Pin 6 - Orange wire

Pin 7 - White/Brown wire

Pin 8 - Brown wire

Note that the RJ45 connector pins are counted from left to right with the plastic tab down and the pins directed away from you:

Push the wire strands at the end of the CAT6 patch cable into the new RJ45 connector. Press each wire firmly into place. The CAT6 protective sheath should be pushed slightly into the connector. Squeeze the handle of the crimping tool to secure the RJ45 pins into the wires. Your repair job is finished and your CAT6 patch cable is now ready for use.

Things You'll Need

  • RJ45 crimper tool
  • CAT6 RJ45 connectors
  • Existing CAT6 patch cable with broken connector
  • Wire stripping tool
  • Wire cutter
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About the Author

Dave Wilson has been writing technical articles since 1993, including manuals, instructional "how-to" tips and online publications with various websites. Wilson holds a Bachelor of Arts in psychology from the University of California, Los Angeles and has Microsoft, Cisco, and ISC2 (CISSP) technical certifications. He also has experience with a broad range of computer platforms, embedded systems, network appliances and Linux.