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To: Frank A. Coluccio who wrote (1534)7/7/1998 10:11:00 AM
From: Frank A. Coluccio  Read Replies (2) | Respond to of 12823
 
Can you relate to this?

=============

FROM THE ETHER - Early good news from rural MVL
DSL trial/ Big boost to Internet speed

July 7, 1998

InfoWorld via NewsEdge Corporation : A digital
subscriber line (DSL) now shares the 22,000-foot copper
pair that brings plain old telephone service (POTS) to
our farm in Maine.

Thanks to our very own little DSL trial, we now enjoy
continuous Internet at hundreds of kilobits per second.

Your farm, however, especially if you live on a remote
island such as Manhattan, is probably stuck with a
dial-up analog telephone modem that busies your POTS
line and runs at a tenth the speed. I'd like to help solve
this problem by reporting that, unless you're a bumbling
and/or conniving telephone monopoly, DSL isn't all that
hard.

Paradyne is a major DSL supplier spun off from AT&T
and is providing Multiple Virtual Line (MVL) equipment
for our DSL trial. See paradyne.com.

The Lincolnville Telephone Company (LTC) operates the
telephone central office 22,000 feet from our farm. Feisty
little LTC also operates our cable TV service and is an
ISP, at tidewater.net.

Midcoast Internet Solutions is our farm's equally feisty
little ISP, at midcoast.com.

The hard part of our trial was connecting Paradyne's
DSL equipment in LTC's central office to Midcoast's
Internet point of presence (POP). LTC ran a 1.5Mbps T1
line to Midcoast's POP, which is 45 minutes southwest
by car. Today's price for such a T1 line is $1,000 per
month.

LTC installed Paradyne's MVL splitter, controller, and
DSL access multiplexer (DSLAM) in one refrigerator-size
rack in LTC's central office. This took about four hours
(at a cost of $200).

The other end of my 22,000-foot telephone pair runs
through an inch-thick "binder group" into a car-size main
distribution frame (MDF) in LTC's central office. From
there it goes into Paradyne's breadbox-size splitter,
which runs POTS back to the MDF and then on to LTC's
truck-size voice switch.

Paradyne's splitter takes the DSL from my telephone pair
and runs it down its rack to Paradyne's breadbox-size
DSLAM. Internet packets flow up and down the rack
between the DSLAM and Paradyne's breadbox-size
controller. The controller exchanges my packets with a
specified ISP, in this case with Midcoast, via T1.

On my desk up at the farm, I have Paradyne's book-size
768Kbps MVL modem. My 22,000-foot POTS line snaps
into one RJ-11 port. My telephone snaps into another.
And into the modem's RJ-45 port snaps any Ethernet
device -- for now my Macintosh, later our Ethernet hub.

The MVL modem senses its DSLAM, and together they
monitor at what rate they can reliably exchange packets.
In my case, 22,000 feet from a central office in rural
Maine, this turns out to be 320Kbps. When I pick up my
phone to make a voice call, MVL drops to 192Kbps.

How much does MVL cost? Paradyne has a starter kit for
feisty little telephone companies and ISPs. For the first
20 subscribers, it's $20,000, or after discounts, $1,000 per
subscriber, including all MVL central office equipment
and subscriber-installed DSL modems.

After another engineering iteration and rollout to 100,000
subscribers, Paradyne says MVL will drop below $400.

Well, $1,000 could be written off in 24 months at $42 per
month. At $400, your farm's MVL could be written off
over five years at $7 per month.

Good news, yes, but there are some complications.

None of these monthly costs includes the Internet
service behind the DSL. For example, I now pay
Midcoast $350 per month for the Internet services
behind the 56Kbps line I now lease from LTC for $250
per month.

The Internet response I'm actually getting through MVL
is not yet nearly 10 times that of POTS. There are many
Internet bottlenecks.

We don't know if we would get 320Kbps were other
MVL subscribers to share our binder groups. What if we
lived closer to LTC and got MVL's full 768Kbps?

Paradyne's MVL is not based on standards being
pursued by the Universal ADSL Working Group (
uawg.org) and the Home Phoneline
Networking Alliance ( homepna.org).

DSL should start small and evolve competitively with
improving technologies and growing markets, like
Ethernet did. But this is not how regulated telephone
monopolies work. I'm worried that, even if our little DSL
trial is successful, it will be discontinued by our public
utilities commission, or overpriced out of the barnyard
based on today's 56Kbps and T1 lines.

Stay tuned.

Internet pundit Bob Metcalfe invented Ethernet in 1973
and founded 3Com in 1979. Send e-mail to
metcalfe@idg.net or see idg.net.