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Thread: AT Keyboard cable hack *input needed*

  1. #1
    Low Bitrate c4shm0ney's Avatar
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    AT Keyboard cable hack *input needed*

    I tried extending an old AT style keyboard cable using CAT5e cable, there are 4 wires plus some copper strands in the cable. I want to know if the copper is a ground wire for the keyboard. Originaly I suspected it was only included to increase the strength of the cable or possibly shielding however after the mod the keyboard does not work. Can anyone confirm my suspicion that the strands are for grounding?

  2. #2
    Neither darque nor pervert DarquePervert's Avatar
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    Quote Originally Posted by c4shm0ney
    I tried extending an old AT style keyboard cable using CAT5e cable, there are 4 wires plus some copper strands in the cable. I want to know if the copper is a ground wire for the keyboard. Originaly I suspected it was only included to increase the strength of the cable or possibly shielding however after the mod the keyboard does not work. Can anyone confirm my suspicion that the strands are for grounding?
    Why don't you hjust get an extension for an AT keyboard?
    This place has a 25-footer for $11.00: http://www.cable4pc.com/kbdcbl.htm
    Have you looked in the FAQ yet?
    How about the Wiki?



    Under normal circumstances, a signature would go here.

  3. #3
    FLAC evandude's Avatar
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    there are 5 pins in an AT connector, of which four are used. ground is one of the pins, but in many cases it is likely that the shielding is a ground too, connected to the metal outer part of the connector. It's unlikely that not including it would cause a huge problem, other than the fact that if it's not grounded it won't be a very effective shield.

    I would say check your wiring, and if you are sure it's correct and nothing is shorted, and still doesn't work, then go ahead and connect the shield braid as well, there's no harm in trying it.
    But don't take it from me! here's a quote from a real, live newbie:
    Quote Originally Posted by Viscouse
    I am learning buttloads just by searching on this forum. I've learned 2 big things so far: 1-it's been done before, and 2-if it hasn't, there is a way to do it.
    eegeek.net

  4. #4
    Low Bitrate c4shm0ney's Avatar
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    Quote Originally Posted by DarquePervert
    Why don't you hjust get an extension for an AT keyboard?
    This place has a 25-footer for $11.00: http://www.cable4pc.com/kbdcbl.htm
    I didn't like the ugly beigh(sp?) cable.. Looks much better with what I have on it now and is easier to conceal.

    I a bit puzzled as I counted only 4 wires in the cable, I'm guessing the braid is wired to a pin at the other end of the connector. I'll try that and report back.

  5. #5
    Constant Bitrate
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    The big question is what are you running that needs AT?? Thats 1998 and before computer stuff there...
    99 ram 5.9 turbo
    P4 2.0, MicroATX, Audigy2nx, Monster Cable / Alpine.
    Coming soon: Indash motorized, 5.1, dvdrw, gps, bluetooth, wifi, and more!

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