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Re: [Shop-talk] running ethernet wires

To: Randall <>
Subject: Re: [Shop-talk] running ethernet wires
From: David Scheidt <>
Date: Tue, 7 Apr 2009 15:03:24 -0400
On Tue, Apr 7, 2009 at 2:17 PM, Randall <> wrote:
>> Right - this is the nice thing about A, you can plug an RJ11 into
>> the RJ45 and it will just work.
> I'm pretty sure the same thing holds for B. B Phones don't care about
> nearly as much as Ethernet does; and the pairing is the only difference
> between 568A and 568B.

Sort of.  POTS single-line phones will work fine on T568B.  Two line
phones may, or may not.  It depends on how the cross connect stuff is

If you're doing a new installation, go with T568A.  There's very
little reason not to; it's the preferred solution, and I expect T568B
will eventually die.

David Scheidt
Support Team.Net

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