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Is Cross Over cable same as Ethernet Cable?

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  • Is Cross Over cable same as Ethernet Cable?

    Crossover cable mean Ethernet RJ45 cable?

    Data Sheet

  • #2
    Re: Is Cross Over cable same as Ethernet Cable?

    Yes... kinda.

    There are two schemes to wire an Ethernet cable; A and B.
    A standard cable is one that has the same scheme on both ends.
    A crossover cable has A scheme on one end and B scheme on the other.

    Here's more info http://www.ertyu.org/steven_nikkel/ethernetcables.html
    Regards,
    Jeremy

    Network Consultant/Engineer
    Baltimore - Washington area and beyond
    www.gma-cpa.com

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    • #3
      Re: Is Cross Over cable same as Ethernet Cable?

      On a standard RJ45/CAT5 or 6/RJ45 Ethernet cable, "out" on one end is connected to "out" on the other end. Similarly, "in" is connected to "in". This means that you need an interconnecting device to connect two computers together, such as a hub or a switch.

      A crossover cable eliminates the need for an interconnecting device, because on a crossover cable, "in" on one end is connected to "out" on the other end - and "out" on one end is connected to "in" on the other. Simple as that.

      With a crossover cable, you can plug RJ45 A into computer A and RJ45 B into Computer B and the two (with a bit of manual IP assigning) will talk to each other directly without a hub or a switch.

      If you plug a crossover cable into a hub or a switch and all the other computers are wired with standard CAT5 cables, that machine will not talk to the network...

      By the way - RJ45 is the standard for the CONNECTOR, and the connector ONLY. It speaks NOTHING to the cable or how it is connected up - only the clear plastic connector with contacts built into it.


      Tom
      For my own and your protection, I do not provide support by private message under any circumstances. All such messages will be deleted and ignored.

      Anything you say will be misquoted and used against you

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