[Tfug] T1 access

[debianfan at cox.net]

Thank-You for all of you responses.  My question has been answered. 

How this started was a T1 was installed at our site and the telecom tech
thought the smartjack was a CSU/DSU so our equipment would not need a
CSU/DSU only a serial interface.  I did not think that was true from
previous experience but wanted to make sure.



Jim






On Mon, 2003-12-15 at 17:28, Harry McGregor wrote:
> Hi Tyler,
> 
> On Mon, 2003-12-15 at 17:16, Tyler Kilian wrote:
> > This has pretty much been answered to death by Jon and Harry,
> > but here are a few things I thought I would add.
> 
> <snip>
> 
> > I could be wrong, but I think for HDSL-provisioned lines, the NIU is 
> > actually
> > necessary to convert between the HDSL and standard ITU T1 signaling.
> 
> Your right, HDSL provisioned lines (almost all copper T1 lines in
> Tucson, from what I can tell) have to have the NIU to convert the
> signaling.
> 
> Qwest has replaced mine 3 times...  It's the fscking copper, but they
> won't admit to it.  Building/area is on an old landfill, and the road
> has formed a number of "dips", and I am sure that the conduit has been
> crushed.  I have had wonderful experiences with Qwests line techs, but
> most of the time their hands have been tied for a real fix...
> 
> The last time we had issues, Qwest decided to try new amplifiers on the
> line, and checked 7 manholes, and were unable to figure out where the
> original amp was placed.  Moved us over to a fiber mux about 2000 feet
> from the building, and we still get frame errors from time to time,
> especially when it rains.
> 
> > In either case, the CSU/DSU is needed.
> 
> Correct.  Depending on the CLEC/ILEC and the handover type, they provide
> an integrated access solution, and you don't interface with the T1
> directly.  Personally I prefer this especially for small/medium sized
> businesses, as I have had server T1 CSU/DSU's and Cisco CSU/WIC
> integrated cards blow up.
> 
> 			Harry
> 
> > # Tyler Kilian, CCNP, SCSA
> > # Technology Director, Dakota Communications
> > # TKilian at DakotaCom.NET | 520.745.3900 x 100
> > 
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> 
> --
> Harry McGregor, CEO, Co-Founder
> Hmcgregor at osef.org, (520) 661-7875 (CELL)
> Open Source Education Foundation, http://www.osef.org
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