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Feature: September 1998
DSL in Davis County: How a Utah school district negotiated cheap, fast Internet access over plain old telephone lines. By Mary Axelson.

How long will a child wait for a map to load? Can a teacher afford to let kids gaze on empty graphics boxes for minutes at a time?

One year ago, Richard Lemon, local visionary and director of telecommunications for the Davis County Schools near Salt Lake City, took a dissatisfied look at Internet use. It simply required too much patience and money. His was one of the first districts to install 56K frame relay lines, but they weren't performing. Especially for the graphic-intensive sites that excite elementary students, 56 Kbps was too slow. He took that complaint to his US West representative, Judy Weeks, along with some articles about a new technology called DSL -- Digital Subscriber Line or Digital Subscriber Loop, depending on the techie who defines it. Engineers promise that DSL -- regardless of definition -- offers high-speed, low-cost Internet access.

In the short version of the story, persistence, meetings, promises, business plans, and more persistence landed Lemon's district a trial that distinguished Davis County as the first and only U.S. school district to have DSL. (Singapore schools use DSL, disqualifying Davis from the global title.)

Contracts for connectivity in Utah's secondary schools are managed by a state consortium, but decisions and funding for elementary schools are local responsibilities. And so, about eight months after Lemon's initial inquiry, Bountiful Elementary School, true to its name, switched on an entirely more enticing World Wide Web, which Lemon says runs faster with DSL than with the T-1 lines at the high school. At press time, Lemon expected to have hooked up all 46 elementary schools by September. Each will have its own DSL line terminating in a NetSpeed box, which is essentially a modem for an Internet server.

DSL technology offers cheap and fast Internet access -- fast enough for video. The connection is always on, and users can simultaneously surf and use the voice line. Actually, DSL uses plain old, twisted copper telephone lines, but new modems at each end of the network create these advanced capabilities. Speeds typically range from a respectably speedy 192 kilobits per second (Kbps) for around $60 per month to 1.5 million bits per second (Mbps) for around $200 per month. Lemon estimates that the switch will allow the Davis County Schools to cut connectivity expenses by 30 percent. That figure will vary from school to school. Savings for schools currently using 128 Kbps ISDN lines, for example, will depend largely on the regionally volatile pricing of those lines.

DSL lines may even be able to service school telephone systems. This intriguing possibility is Lemon's next experiment. Ideally, he wants Davis County to buy the bandwidth and then decide whether to use it for voice, data, or video. He's initially testing one telephone at each school on the DSL line to determine quality. It might be possible to switch each school's phone system over to the line in the future.

Drawbacks and alternatives

What's to dislike about DSL? There are some limitations. For starters, the telephone system needs upgraded switches and newer versions of twisted copper. Small rural districts might have the most to gain from DSL, but adequate infrastructure is typically only available in urban areas. Also, the recipient has to be within about 18,000 feet of the switch, and quality degrades for those more than 9,000 feet away.

Another limitation, at least for now, is availability. Ameritech, Bell Atlantic, Bell South, GTE, Pacific Bell, Southwestern Bell, and US West plan to roll out the service across the country in the coming years. But in every initial rollout, the telcos plan to market not to K-12 schools but to consumers, small businesses, and, in rare cases, to universities. The telcos, which are responsible to stockholders, can justify the expense of marketing to this audience: DSL just might be the product that will tempt home consumers and small businesses to pay more for a high-speed line -- and upgrade from a screeching dial-up line with a 28.8 Kbps modem to screaming industrial power.

Schools that don't want to wait for a later marketing push will have to go after DSL on their own, as Davis County did. Or they can seek alternatives, like cable modems.

In fact, the need to compete with cable modems has driven much of the telcos' collective motivation to build DSL infrastructure and many of their decisions as to where to introduce it first. Cable companies across the country are in the process of introducing their new coaxial Internet services. The technology has downstream capabilities of 27 Mbps, but because this bandwidth has to be shared by all users, 1.5 Mbps is a more realistic expectation, and this is the bandwidth typically allotted to schools. Upstream rates are about 786 kbps. Consumer pricing for cable modems is around $40 per month.

Unlike telcos, cable companies are aggressively placing their Internet technology in schools via Cable's High Speed Education Connection from the National Cable Television Association. Each industry participant has pledged to provide one free, high-speed cable modem and free high-speed service for one computer in each school passed by the upgraded, bi-directional cable infrastructure. A teacher-training component also figures prominently in the offering.

Home markets through homework?

Internet pioneer David Hughes, whose work on wireless networks was profiled in the January 1997 issue of Electronic School, is baffled by the telcos turning their collective DSL backs on the school market. Certainly not one to credit telephone companies with vast wisdom, he thinks they're missing key customers. In Hughes' view, the consumer/small business market for high-speed lines is dangerously limited. A much broader audience will be encouraged to subscribe, he says, if DSL gives kids and parents access to school information.

"If a school is equipped with DSL, then it's much more likely that students, homes, and teachers will be," says Hughes. "[Families] need multimedia access," he explains. "They've got the dual phone problem like everybody else. If they get a second line, they still have to live with the slow rate of speed." Plus, he adds, telcos could train their future markets to expect high speed access. The wireless evangelist even endorses DSL technology, especially if it can simultaneously reduce the cost of a school's voice telephone system.

Hughes' logic for school sales might eventually prevail in the behemoth marketing channels of the phone companies, but until then, don't look for many DSL sales troops knocking on your schoolhouse door.

"Give it serious consideration; press for any telco to make it available," advises Lemon, pointing out that the high speeds and savings reach beyond Internet access to all data services.

Proactivity pays

Schools that want DSL lines will probably need to be proactive, but maybe not to the degree that Lemon was. To establish this trial, the Davis County schools had to agree to be available for US West publicity and to commit to a vision of voice, video, and data on a single bandwidth. That required approval by a vast hierarchy of administrators and the school board. Lynn V. Trenbeath, assistant superintendent, adds that a long-standing relationship between US West and the district, combined with strategic geographic placement in Utah's wiring infrastructure, helped the district get ahead of the technology curve.

US West, in a request suggesting the company is not entirely unaware of Hughes' suggested marketing strategy, wanted to see a business plan from the district defining whether the lines were a viable vehicle to expand into the home market. The telephone company wanted to know if parents with DSL lines could access useful school information and whether working at home was a viable option for some employees. The demographics were favorable: In student surveys, 80 percent reported having computers at home. US West had already tapped a school-home promotional channel by offering parents and students within Davis County Schools discounted dial-up connections at $10.95 per month.

Most significantly, from Lemon's perspective, the telco's market needs fit his pedagogical goals: more curriculum resources and increased home/school communications. "When we first started, we looked at the [educational] value it had," says US West's Weeks. "In Davis County, there are real concerns to make sure parents are part of the education system."

Lemon anticipates the DSL lines will provide more than web curriculum content -- including increased home-school communications and parental involvement. He has already built a system for his district that permits parents to check grades for particular assignments and attendance. Teachers take attendance and record grades on the school computer system. Attendance information is available to authorized users moments after class begins. (Indeed, says Weeks, a recent demonstration of the system at a local business displayed an uncharacteristic tardiness for the presenter's straight-A son.)

Teachers also frequently work from home, not only accessing the network but working collaboratively with other teachers, schools, and universities. "We'd like to do student registration remotely," says Lemon, listing future plans for the network. Another item on his wish list is online academic planning -- which would include the ability to make appointments with counselors. Eventually, he hopes for a school without walls where all courseware is available at an acceptable speed at home or elsewhere.

Connect and deliver

But the real payoff is near-instant access to the rich curriculum offerings on the web. "It's lightning fast. You click and your page is there," says Diane Smith, an instructional specialist and technology trainer at Davis County's educational technology center. Without the speedy connections, she says, "a lot of teachers have thrown their hands in the air and said they don't have time for this. Despite lots of training, Internet usage just did not happen."

Smith used bookmarks; she cached favorite sites; but nothing attracted instructors. And because students can spend only brief amounts of time working on a computer -- either in a lab or in the classroom -- frustration with slow-loading or unavailable sites was high. Smith says that some of the preferred sites required half an hour to load, when even a few minutes was too long.

Smith has seen a significant increase in Internet use since DSL removed those frustrations. Heavily accessed and thus sluggish sites are now available on demand. Photos require no wait. Music flows smoothly. Satellite images zip right in. "There are incredible resources out there that teachers have hesitated to use because of the time that it took to access them," explains Smith.

Smith makes heavy use of sites funded by advertising or established as promotional efforts rather than sites requiring subscription fees. She has toured education sites that require subscription fees, but no matter how impressed she might be with these resources, she has no budget for them. Indeed, she expects the district's subscriptions to print products to dwindle. But now the swift availability of Internet resources makes that a much less frightening prospect.

To learn more about DSL in Davis County, call Lynn V. Trenbeath, assistant superintendent responsible for all support services including technology, (801) 451-1270, or J. Dale Christensen, administrator of support systems with direct responsibilities for technology, (801) 451-1356.

Mary Axelson edits the Heller Reports' newsletter, Internet Strategies for Education Markets.

WHEN AND WHERE

Beth Gage, a consultant at TeleChoice, says the North American DSL market is expected to reach an installed base of 110,000 lines this year, 355,000 in 1999, and more than one million in 2001.

What will be available in your district? It's a rapidly changing market, but here -- for now -- is a brief rundown:

US West is first to market with DSL lines and a related Internet connectivity package. Salt Lake and Phoenix received the first trials. The company expects to have rolled out DSL service to 35 cities by this fall.

SBC Communications Inc. (San Antonio) owns Pacific Bell, Southwestern Bell, Nevada Bell, and, if all goes as planned, Ameritech. FasTrak DSL trials with Pacific Bell began in the San Francisco area. Over the summer, Pacific Bell worked on extending the service to 87 central switching offices serving 200 communities throughout California. Southwestern Bell is holding an initial trial of the product in Austin. Ameritech started with trials in Ann Arbor and Royal Oak, Mich., with plans to introduce the technology to the Chicago market later this year.

In the first of two phases, GTE will convert its current ADSL trials into broad-market deployment, enabling customers in portions of Beaverton, Ore.; Durham, N.C.; West Lafayette, Ind.; and Redmond and Kirkland, Wash., to access the web at speeds of up to 1.5 Mbps. During the second half of the year, GTE plans to offer ADSL service in 30 additional market clusters in California, Florida, Hawaii, Illinois, Indiana, Kentucky, Michigan, Missouri, North Carolina, Ohio, Oregon, Pennsylvania, Texas, Virginia, Washington, and Wisconsin.

Bell Atlantic is running four small trials, one with 325 households in Virginia and three others in Boston. The company expects a commercial rollout later this year.

Bell South has a trial in Birmingham and also expects a rollout later this year. The company has not yet released a schedule.

This summer Sprint unveiled its plans for a non-DSL high-speed telephone network that will provide voice, data, and video at low costs. The company has spent $2 billion to develop its Integrated On-Demand Network (ION) over the past five years and expects to invest an additional $400 million over the next two years. Business markets will be tapped initially, with the service available in select markets later this year. Consumer markets will follow. Pricing had not been determined at press time.-- M.A.



DSL DISTINCTIONS

Not all DSL technology is the same. Davis County uses a service called RADSL, or Rate Adaptive Digital Subscriber Line. Developed by US West, RADSL offers speeds of 704 Kbps in both directions -- half as fast as a T-1 line for less than $120 per month per school. That fee includes rental of the modem, but there are additional installation costs, which typically run $125 per line for consumers. Of course, the school prices depend on volume and other commitments to the local telephone company. Lemon runs one line into each school network.

ADSL (Asymmetric Digital Subscriber Line) is a DSL line in which download speeds to the subscriber are faster than upload speeds. Universal ADSL is an ADSL standard being created by an international organization of telephone and technology companies. To learn more, see the tutorial created by the International Engineering Group.

And then there's HDSL, or High-bit-rate Digital Subscriber Line, the earliest DSL technology. HDSL uses transceivers on each end of two or three twisted pairs but is being modified to work over a single copper phone line.

Confused? You can always refer to xDSL -- a catch-all term that covers all flavors of DSL, including ADSL, HDSL, and RADSL. -- M.A.

Reproduced with permission from the September 1998 issue of Electronic School. Copyright © 1998, National School Boards Association. This article may be saved to disk, printed out for individual use, or reproduced in quantities of less than 100 copies for academic use only, provided this copyright notice remains intact on each copy. This article may not be otherwise transmitted or reproduced without the consent of the Publisher. For more information, call (703) 838-6739.


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