In article ,
Jim Thompson
wrote:

On Tue, 08 Feb 2011 18:26:04 -0600, flipper wrote:

On Tue, 08 Feb 2011 12:43:25 -0700, Jim Thompson
wrote:

Two lines coming in...

How much risk is it to assume that both "Tips" are essentially earth
ground potential?

...Jim Thompson

Probably about that same as assuming chandeliers, wall outlets, and
thermostats are wired properly.

Get a meter and check it.

I wasn't clear...

What I'm driving at, can I run a ringer from Ring to Earth ground?

(I don't have enough pairs :-)

...Jim Thompson

The phone lines are a mile long antenna that can pick up a few volts of
broadband hash. You definitely don't want the pair becoming unbalanced
by any amount.
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