North American Network Operators Group
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RE: T1 short-haul vs. long-haul

  • From: Michael Loftis
  • Date: Fri Jul 23 01:51:04 2004

hate to say it but what is pictured is not a smart jack, it is as you say a glorified patch.


a *TRUE* smart jack DOES have the tiny bit of circuitry necess'y to cause it to loop the line back when nothing is connected to it, some can do it via line signaling as well.

in some telco territory what they call a smart jack is, most certainly, NOT.

as always, YMMV, SBC/PacBell in SFO area usually does use a true smart jack, but not always. out of a number of t-1s installed for both voice and data while working at 2 Connecticut i was about 80/20 in favor of smart jacks.

--On Thursday, July 22, 2004 21:15 -0700 Michel Py <[email protected]> wrote:



Christopher Woodfield wrote:
In the interest of complicating things further, I think
you have NIU and smartjack backwards in your explanation



You think, which is a good beginning. Seeing it with your own eyes might
be of some interest, NTM that doing it for a living for 20+ years may
give new an entire new outlook on it.

For the entertainment of non-american readers, wannabes, and rookies I
stopped by a T1 MPOE on my way home and took a few photos.