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  1. #1
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      Rise Company
    Engineering and Technology
    Apr 2014
    Egypt
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    RJ45 Cat5 Cat6


    RJ45 Cat5 Cat6


    Cat 6 uses a different type to ensure the cables have separation all the way to the end to prevent near and far end cross tlak






    Cat6a cables officially use the same rj45 connectors as a Cat6 (per standard), but the cat6 & cat6a cables are fine to use with cat5e connectors (speed not affected) in a pinch with no loss [only disadvantage could be crosstalk], (and as long as the cable/sheath fits the connector - ha). It's also, not ideal but, OK to use standard unshielded Cat6 connectors even if the cable is shielded and/or provides a ground wire (if not needed for the job).

    CABLE = OFFICIAL CONNECTOR TO USE:
    Cat5e Cable = cat5e rj45 connector
    Cat6 Cable = cat6 rj45 connector
    Cat6a Cable = cat6 rj45 connector
    So I guess there is no Cat6a style connector, only just "Cat6" that works on all cat6 style cables. I also understand that sheath/cable gauge is not standard and may have to be manipulated, as you mentioned, if it's too thick to fit in cat6 rj45 connectors. Last but not least, I understand that cat5e connectors have a flat bottom whereas cat6 connectors stagger the cables only to prevent cross talk, due to the higher bandwidth.
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  2. #2
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    : RJ45 Cat5 Cat6

    Questions:
    1, if the cable I am working with has a metal ground wire, am I required to use a shielded rj45 connector. This will only be a gigabit network, so I don't need the full speeds a cat6a cable will give me.
    2, the guy in the video didn't talk about *cat6a* cables, just "cat6". Can I use cat6 rj45 connectors on a cat6a cable?

    3, if I use a cat5e rj45 connector, will the cable still work fine?
    4, if I use a cat5e rj45 connector, will the speed of the cable drop to cat5e speed, or would I get the speeds cat6a can deliver?
    5, do all these connectors/cables go through a standard rj45 crimper, or do I need a different crimper?
    6, i understand that the cat6 rj45 connector opening is wider, but I don't think the cable will fit. It is REALLY thick??? should I use pliers to make the piece of cable tighter/flat to force it in?

    Answers:
    1. If you don't required shielded cabling, not connecting the earth will not affect the function of the cable. Shielded plugs are different again as they have a metal coat to ensure end to end earthing of the cable.

    2. In theory there is no functional reason why a Cat5e end couldn't be used on a Cat 6 cable and vice versa, clearly the combination of Cat6 cable and the Cat6 end is the optimal choice if available.
    3. I can't think of any reason why not.
    4.The cable is more important, as long as the connection is a good one, I don't think the available speed would suffer, I would suggest you would be at hight risk of cross talk (where the signal from one pair affects another),. Unless you at in a really high availability environment, in which can I would suggest you use fibre, I think you should be ok. Not ideal, but ok.
    5. As long as you have a decent set of crimpers you should be ok.

    6. Remove about an inch and a half of the cable sheath and untwist the cables back to the sheath, get them flat using your hand to pan them out, the plier may damage the cable.
    Of course, I should point out that ideally you should be using the correct end for the correct cable, ideally the same vendor to ensure warranty and compatibility, I'm sure you doing one of those "best endeavour" jpb we get from time to time.
    I didn't think it was possible but I've excelled myself, I've managed to find a video explaining some bits and his voice is even more annoying!



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