[Tfug] T1 access

[Harry McGregor]

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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