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Re: ethernet cards and cable connection

???@ATHENA.MIT.EDU (Randy Chapman)
Thu Apr 18 17:08:56 1996

Date: 	Thu, 18 Apr 1996 12:33:13 -0700 (PDT)
From: Randy Chapman <chapman@cs.washington.edu>
To: "Sheldon E. Newhouse" <sen@math.msu.edu>
Cc: linux-net@vger.rutgers.edu
In-Reply-To: <199604181752.NAA10714@chaos>


Thinnet cable is *NOT* the same as your TV cable!!  It looks the same, has
the same kind of connectors, but is a quite different resistance
(if I remember my terms right =)  One is 75ohm, the other is 50.
I forget which is which.  You should be able to quickly find out
by seeing what they are selling as TV antenna cable at Radio Shack.

--randy (hoping memory serves well)

On Thu, 18 Apr 1996, Sheldon E. Newhouse wrote:

> I have a high speed commercially provided internet connection. It runs
> on the same cable as my cable TV.  I presume that the signals are
> carried at different frequencies.
>  It seems to work fine using a cheap NE2000 ethernet card on my linux
> box, but when I try a PCI card--I have tried SMC 8432 and 3COM 590 --
> things don't work.  So, I presume that it there some 'frequency
> filtering' going on with the NE2000 clone which is not going on with the
> other cards. I would like to understand this. Can anyone suggest some
> literature related to this kind of thing.  The other cards work fine on
> my local net.
>
> Thanks,
>  -Sheldon
>
>  ---------------------------------------------------------------------------
>  | Sheldon E. Newhouse            |      mail: newhouse@math.msu.edu       |
>  | Mathematics Department         |       www: http://www.mth.msu.edu/~sen |
>  | Michigan State University      | telephone: 517-355-9684                |
>  | E. Lansing, MI 48824-1027 USA  |       FAX: 517-432-1562                |
>  ---------------------------------------------------------------------------
>
>



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