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Article #368

Re: running network cable through windows and walls?

#368
From: Daniel Erskine
Date: Fri, 28 Aug 1998 00:00
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David Wolfskill wrote:
> And, as I wrote a few days ago in this thread, the basic issue isn't the
> length of the cable -- that's a concern for other reasons -- but the
> transition-points.
> 
>         You get reflections at the points where there's an
>         impedance mismatch.
> 
> The same kind of effect may be seen by looking at an object with or
> without a pane of glass intervening -- the thickness of the pane isn't
> all that much at issue; that it's there at all, and has an index of
> refraction different from the surrounding medium (air, usually), causes
> observable reflections if there's a signal coming from the observer's
> vantage-point.
> 
> Reflections not only represent some signal lost, but also increase the
> probability of a reflection being interpreted as something that could
> contribute to an Ethernet collision.
> 
> David H. Wolfskill                              david@dhw.vip.best.com

Greetings:
  This sounds logical to me :)  I'm not a network topologist yet, so
whatever I learn is always appreciated :)

Thanx,
------------------------------------------------------
    THE PRECEDING REFLECTS THE VIEWS OF THE AUTHOR
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Daniel W. Erskine            "mailto:erskined@gte.net"
(314) 515-1406       "mailto:netsup75@edwardjones.com"
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From: Daniel Erskine <netsup75@edwardjones.com>
Subject: Re: running network cable through windows and walls?
Date: 1998/08/28
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