nanog mailing list archives

RE: Managing free pairs to prevent DSL sync. loss


From: "Matlock, Kenneth L" <MatlockK () exempla org>
Date: Tue, 17 Jul 2012 09:13:33 -0600

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 () exempla org



-----Original Message-----
From: valdis.kletnieks () vt edu [mailto:valdis.kletnieks () 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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