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CAT5e termination

Discussion in 'Electronic Design' started by Rich Grise, Nov 1, 2010.

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  1. Rich Grise

    Rich Grise Guest

    100 ohms.

    Have Fun!
    Rich
     
  2. I want to use CAT5e cable for transmitting signals of around 6MHz.
    What is the correct resistor value for termination?
     
  3. Plus. Minus 100R would probably cause oscillation.


    ;-)
     
  4. Tim Williams

    Tim Williams Guest

    Hummm... a resistor has V = I*R, while a capacitor has V = integral I*C
    dt. So a flux capacitor has Phi on one side or the other.

    Now, a reluctance has MMF = Phi * scriptR (a "flux resistor"), so a flux
    capacitor should have MMF = integral Phi*C dt.

    Now, in flux, it turns out that reluctance is conservative, so its phase
    shift should be unconservative (i.e., lossy). In other words, the
    imaginary component of permeability mu'', or epsilon'' for permittivity.

    Interestingly, this means there is no such thing as a flux inductor
    (barring active devices with an external power source), because it would
    have negative loss, i.e. instead of consuming power, it would generate
    power, like the fabled negative resistor.

    In conclusion: a flux capacitor is just a hunk of steel (lots of eddy and
    hysteresis loss). ;-)

    Tim
     
  5. Rich Grise

    Rich Grise Guest

    Plus or minus 5% should be fine, depending on what kind of VSWR your
    ezuipment is capable of handling. ;-)

    Cheers!
    Rich
     
  6. Or as Elmer would say "Wefwections... Huhuhuhuhuhuhu..."

    It won't work. CAT 5e has too many tpi. :) Need to step back to
    something older.

    (wonder how long it will take folks to get what that refers to)
     
  7. Fredxx

    Fredxx Guest

    Of course - you've reminded me where I've put that Tunnel Diode.
     
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