Managing free pairs to prevent DSL sync. loss

Matlock, Kenneth L MatlockK at exempla.org
Tue Jul 17 15:13:33 UTC 2012


Yeah, grounding both ends will result in some current traversing across
the pairs all the time because of differences in ground potential over
long-ish distances.

Ken Matlock
Network Analyst
303-467-4671
matlockk at exempla.org



-----Original Message-----
From: valdis.kletnieks at vt.edu [mailto:valdis.kletnieks at vt.edu] 
Sent: Tuesday, July 17, 2012 9:00 AM
To: John Souvestre
Cc: 'NANOG Mailing List'
Subject: Re: Managing free pairs to prevent DSL sync. loss

On Tue, 17 Jul 2012 09:15:59 -0500, "John Souvestre" said:

> Have you considered grounding one end (or both) of the free pairs?  
> Perhaps this would reduce the amount of noise they pick up.

Grounding both ends will probably result in "hilarity ensues".  And I
suspect that Anurag can't ground the free pairs, because the copper
belongs to the provider.
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