Re: Leased Line AS/400 access

["John Taylor" <john.taylor@xxxxxxxxxxxxxxx>]

Bill,

From my limited understanding,  a T1 can be used to deliver ISDN PRI
services, or Frame Relay services, or one of several other protocols.

Technically speaking, in digital networking, a single 64-Kbps channel is
referred to as a DS-0. Beyond that is the DS-1, a collection of 24 DS-0
channels. A DS-1 delivered over a copper wire is called a T1. This term "T1"
has become so popular that people often use it to refer to any 1.5 Mbps
link.

I think it is also largely a matter of telco packaging. Our 256K ISDN
connection could just as easily have been purchased as a fractional T1. The
difference is the in the cost. ISDN was packaged at a lower cost than
fractional T1, even though they both employ the same copper.

John Taylor

----- Original Message -----
From: Bill Paris <bparis@sccmail.com>
To: <MIDRANGE-L@midrange.com>
Sent: Thursday, September 30, 1999 12:06
Subject: RE: Leased Line AS/400 access


> Isn't that referred to as T-1 service? (as opposed to ISDN service)
>
> Bill Paris
> Sorrento Cheese Co., Inc.
> 716-823-6262 x376
> bparis@sccmail.com
>
>
> > As an example, in addition to BRI, another standard offering
> > is called the
> > Primary Rate Interface (PRI) which provides 23 B Channels
> > (1472 kbps) and a
> > single D Channel.
> >
> > Another benefit, is that the service can be setup for
> > bandwith on demand. So
> > if your peak requirements are under 256K, but your average
> > requirement is
> > under 64K, you can install 4 B channels to handle your peak load, but
> > configure it so that the extra channels are only used when the traffic
> > warrants it.
> >
> > Regards,
> >
> > John Taylor
>
> +---
> | This is the Midrange System Mailing List!
> | To submit a new message, send your mail to MIDRANGE-L@midrange.com.
> | To subscribe to this list send email to MIDRANGE-L-SUB@midrange.com.
> | To unsubscribe from this list send email to
MIDRANGE-L-UNSUB@midrange.com.
> | Questions should be directed to the list owner/operator:
david@midrange.com
> +---
>

+---
| This is the Midrange System Mailing List!
| To submit a new message, send your mail to MIDRANGE-L@midrange.com.
| To subscribe to this list send email to MIDRANGE-L-SUB@midrange.com.
| To unsubscribe from this list send email to MIDRANGE-L-UNSUB@midrange.com.
| Questions should be directed to the list owner/operator: david@midrange.com
+---