Check RJ-45 Cable?

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  • aquasudha
    New Member
    • Jun 2008
    • 31

    Check RJ-45 Cable?

    Hai Experts,
    How can i check RJ-45 cable (strait through or cross over crimped)?
    and How can i check that weather i've crimped correct or ......?
  • questionit
    Contributor
    • Feb 2007
    • 553

    #2
    Qi

    Straight cable will have same wire order (by color) at both ends.

    Cross-over will have opposite wire order at each ends.


    Check the cable by connecting to physical devices and simply give command PING at Command Prompt to check the cable .

    Qi

    Comment

    • sicarie
      Recognized Expert Specialist
      • Nov 2006
      • 4677

      #3
      A Google search can give you exact information.

      Comment

      • aquasudha
        New Member
        • Jun 2008
        • 31

        #4
        Originally posted by questionit
        Qi

        Straight cable will have same wire order (by color) at both ends.

        Cross-over will have opposite wire order at each ends.


        Check the cable by connecting to physical devices and simply give command PING at Command Prompt to check the cable .

        Qi

        After crimping colors r not visible properly. in this case how can i check the cable?

        Comment

        • questionit
          Contributor
          • Feb 2007
          • 553

          #5
          Originally posted by aquasudha
          After crimping colors r not visible properly. in this case how can i check the cable?
          Just connect both ends of the cable to the devices and give PING command.

          You will need to check the wires if either of the following displays when you Ping:

          1) Ping responce time is slow
          2) Any of the 4 attemps the Ping command makes doesn't get any responce (Timed out is displayed)

          Hope it helps
          Qi

          Comment

          • pradhan1983
            New Member
            • Sep 2008
            • 2

            #6
            Straight cable will have same wire order (by color) at both ends.
            For checking cross cable the order is little different.
            1st end . 1(or-w) 2(or) 3(gr-w) 4(bl) 5(bl-w) 6(gr) 7(br-w) 8(br)
            2nd end. 3 6 1 4 5 2 7 8

            Comment

            • themadjester
              New Member
              • Mar 2008
              • 37

              #7
              if you are making many cables you may find it worth while to invest in a cable tester. You can get them as cheap as $10.

              There can often be problems with cables that are not visually observable to this is well worth looking into.

              Comment

              • aquasudha
                New Member
                • Jun 2008
                • 31

                #8
                Originally posted by themadjester
                if you are making many cables you may find it worth while to invest in a cable tester. You can get them as cheap as $10.

                There can often be problems with cables that are not visually observable to this is well worth looking into.


                hai frnd
                thanks, where i can get the cable tester? is it show the calble color arrangement in both end?

                Comment

                • themadjester
                  New Member
                  • Mar 2008
                  • 37

                  #9
                  check digikey, amazon and other internet retailers, local electronics supply in town etc.

                  more advances/higher quality testers will of coarse cost more but a cheap one will likely suit your purposes.

                  Comment

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