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Module One - Activity 6: Creating and Testing a Crossover Cable
  • Crossover cables enable inter-device communication, for example between a wireless modem and an ethernet router. They, like patch cables, should be created using STRANDED CAT5.


  • Use a different colour jacket for Crossovers!!: Because crossover cables serve a different purpose and thus function differently, it is essential that they be CLEARLY differentiated from patch cables. As with Patch cables, choose a colour coding system for your network crossover cables, such as the commonly used RED, and stick with it. If it is not possible to purchase different coloured jacket CAT5 for your crossovers, then CLEARLY label them so that they are EASILY discernable from the patch cables.



  • Terminate using the correct standard: To create the crossover cable, carefully follow the instructions for attaching the RJ45 connectors onto the stranded CAT5, and follow the correct crossover standard for both ends, as shown below.


  • Test the cable: It is essential that crossover cables be tested. Several different kinds of testers are available. Once the patch cord is completed, insert the ends into the appropriate slots on the tester that you have purchased, and follow the manufacturers instructions to see if your patch cable is working correctly.

 

    TIP: If at first you don't succeed, try, try again.

    DID IT WORK?? In order for the network to work correctly, all of the cables need to function well. If, after testing the cable, it doesn't work properly, cut the end off, and begin again.

  • Repeat if necessary: If your cable is NOT working correctly, you will need to cut the end off which is causing the problems, and begin again, installing further RJ45 ends until the cable does work properly. The proof is in the pudding.