Re: running network cable through windows and walls?

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#347

From: Tom Perkins
Date: Mon, 31 Aug 1998 00:00

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Some people don't even like mixing the same cable type from different
vendors be cause of the possible (but slight) impedence mismatches.

Regards
Tom

Smith and O'Halloran wrote:
> 
> In article <35e6319c.53011606@news.lakwod1.co.home.com>,
> Aaron Blosser <blosser@home.com> wrote:
> >On Fri, 21 Aug 1998 11:07:04 -0500, Daniel Erskine
> >For short runs of cable, I highly doubt that using 50ohm vs. 75ohm would
> >make a difference.  That measurement is a measure of the cable's
> >impedance over some distance (1000 ft?), so for a short bit of maybe
> >50-100 ft, the difference *may* be neglible.
> 
> Oh, it does make a difference.  Even a two-inch length of the wrong
> cable causes reflections.  The characteristic impedance of a cable
> is the same as value of the resistor that can terminate the cable without
> causing reflections or anti-reflections; it has nothing to due
> with the length of the cable.
>         -Joe
> --
> INWAP.COM is Joe and Sally Smith, John and Chris O'Halloran and our cats
> See http://www.inwap.com/ for "ReBoot", PDP-10, and Clan MacLeod.

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From: Tom Perkins <thomas.perkins@usa.net>
Subject: Re: running network cable through windows and walls?
Date: 1998/08/31
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