Re: [PLUG] T1 Connections..

[adam <adam@looney.com>]

ugh. groan. atx.

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On Wed, 28 Jun 2000, Jason Costomiris wrote:

> On Wed, Jun 28, 2000 at 04:01:13PM -0400, Bill Jonas wrote:
> : When you order a T-1, Bell, after a (usually seemingly
> : interminable) period of time, runs "dry copper" (just a copper
> : twisted-pair wire, with no other services on it) to your place of
> : business.  
> 
> Not always true.  Sometimes, when the run is very short, Ma Bell will use
> Cu for the whole thing, however, most of the time, this is simply not what
> they do.  It's also not a dry pair.  There are actual line programming
> codes used to control the signals (look up terms like B8ZS, AMI, SF and 
> ESF)..  The fiber loop they'll drop in will typically be OC-3 or OC-12
> capacity glass, to permit growth.
> 
> Ma Bell will drop fiber into your building (if it's not already there), 
> and install a couple of boxes called a "fiber loop converter" and a 
> "smartjack".  The Cu will be run from the smartjack to your CSU.  It's
> interesting to note that my T-1 was delivered over fiber, despite being
> next door (literally) to my local CO.  Fiber strung over the alleyway, 
> along the rear roofline, and down to the basement where the loop convertor
> and smartjack are.  Of course, there's our T-1 (no voice on it), and our
> neighbors that have 3 voice T-1's.  The programming for an "all voice"
> T-1 is not unline PRI programming.
> 
> : T-1s come with a fixed charge per month, and you cannot make voice calls
> : over them (unless you do something like Voice over IP); it's just a data
> : connection.
> 
> Not true, as well...  It is possible, but not always desirable to split off
> some of the DS0's of your T1 for use as voice channels.  This is done by
> terminating the T1 in a device known as a "channel bank".  So in his case,
> were he wanting to get a 256k frac t-1, and use channels from the same line
> for voice, he would need to use an ISP that's also a telco, such as MCI,
> Sprint or ATX (Philly's own)..
> 
> -- 
> Jason Costomiris <><           |  Technologist, geek, human.
> jcostom {at} jasons {dot} org  |  http://www.jasons.org/ 
> 
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