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Article #346

Re: telephone interference

#346
From: Ron Kritzman
Date: Mon, 03 Mar 1997 00:00
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Daniel Partridge wrote:
> 
> Need a filter design to eliminate crosstalk between modem and second
> telephone line in my house. Anyone?Daniel Partridge

A filter isn't going to do you any good, since there is nothing
for you to filter.  Most often crosstalk happens between adjacent
non-twisted pairs.  Examine the cable in your house.  If the pairs
are not twisted pairs replace the cable.  In the U.S. the non-twisted
type of cable most often contains 4 wires: red, gree, yellow, black.
Red/Green is your first line, and Yellow/Black is the 2nd.
The twisted cable will most commonly have pairs of opposite colors.
Pair 1 = white/blue and blue/white.
Pair 2 = white/orange and orange/white.

   Ron
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Message-ID: <331B037B.D8D@ais.net>
Path: arc1-ca.pugleaf.net!unknown!not-for-mail
References: <331A3969.F5B@cybertron.com>

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From: Ron Kritzman <ronk@ais.net>
Subject: Re: telephone interference
Date: 1997/03/03
Message-ID: <331B037B.D8D@ais.net>
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References: <331A3969.F5B@cybertron.com>
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Newsgroups: alt.dcom.telecom,aus.comms