Posting a message to the forum will remove the above advertisement

  1. This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.

Discuss RJ45 - 3 damaged cores in the Computer and Networking Forum area at

Thread Status:
Not open for further replies.
Please make sure you checkout our forum sponsors, many do discounts for members and, they keep the forum free to use.
  1. calpol91

    calpol91 Electrician's Arms


    I have a customer with a cat6 from his house to a workshop on his land further up. Most of the run is underground, and the pipe is fair tight.

    3 of the cores are damaged at some point and he's reluctant to pull a new cable in if he can avoid it since its a massive run, although I have stressed that this is the best option.

    If cores are in order 1 to 8 if I remember correctly it was 3, 4, and 5 that were damaged. maybe 4, 5, and 6. (Either way both blues and one of of the greens.)

    As I understand it, the greens are the issue as the blues are not connected in a switch or router, so If I did a little moving around of the order of the cores and replace browns with the greens say, in the rj45 plug, could this work?

    This cable is going straight from a router to a switch, no PoE or anything like that.

    For the record I have googled it but I've seen different options on what the cores actually do, so I just need some guidance.
  2. Spoon

    Spoon Forum Mentor

    I'd go with Yes. As long as you are replacing a damaged twisted pair with a unused twisted pair I can't see the problem.
    • Like Like x 1
  3. LeeH

    LeeH Electrician's Arms

    Just try it, nothing lost.
    • Like Like x 1
  4. hightower

    hightower Guest

    If it's only being used for 10/100 speeds then reusing the other cores should prove successful. If it's being used for Gig ethernet, gig requires all 4 pairs so it would not be possible.
    • Like Like x 2
Similar Threads - RJ45 damaged cores Forum Date
Best fix for a friction damaged cable Electrical Forum Apr 15, 2019
Thread Status:
Not open for further replies.

Share This Page

Electricians Directory Post a Domestic Job Post a Commercial Job