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More on ADSL

More on ADSL

Website Exclusive

More on ADSL

ADSL Pros and Cons
Pros Cons
Uses existing copper Highest speeds are only attainable on loops &18K feet
High access speed may be mismatch versus Internet backbone capacity
Star topology Unknown Telco tariffs
High data network access speeds possible Telco positioning as consumer service
Data travels over less expensive, non-switched infrastructure Standards confusion
Flat rate pricing Lagging behind cable modem implementations
Potential for turnkey application solution in Internet access

ADSL Trials and Service Deployments

Company and Location


Trial dates
Dalton, GA & Hudson, OH
Down: 1.5 Mbps
Up:64 Kbps
Ameritech and IBM
Wheaton, ILL
Down: 1.5 Mbps
Up:64 Kbps
10-96 with deployment by mid-1998
Bell Atlantic
Northern Virginia
Down: 1.5 Mbps
Up:64 Kbps
Atlanta, GA
Down: 6 Mbps
Up:64 Kbps
10-95 with deployment 1-98
Cincinnati Bell
Cincinnati, OH
Down: Down 640 K-2.56 M; 272-1.08M 1-97
Irving, TX
Down: up to 4 Mbps
Up: up to 500 Kbps
2-96 with deployment in 1997
GTE and Microsoft, Redmond, WA Up to 6 Mbps; 384 Kbps 9-96
Intelecom Data System
Rhode Island
Down: 640 Kbps-2.5 Mbps
Up:275 Kbps-1.08 Mbps
Deployment 3-97 in Rhode Island with plans to expand to other areas in New England
Chicago, IL
Down: 1.5 Mbps
Up: 64 Kbps
Deployment 9-96
MCI Communication Corporation with partners NW Iowa Telephone & NW Iowa Power
Iowa, New York and Detroit
Down: 1.5 Mbps
Up: 64 Kbps
10-96 with deployment in 8-97 in Iowa, will add rural areas in 10 states nationwide by early 1998
Network Access Solutions
Mid-Atlantic Region
Down up to 6 Mbps Deployment 2-97
Nynex and Lotus
Boston, MA
Down: 1.5 Mbps
Up: 64 Kbps
8-96 with deployment in 1998
Northland Comm
New York
Down: 1.5 Mbps
Up: 64 Kbps
2-978 with deployment to Utica/Rome and Syracuse in late 1997
Pacific Bell
San Ramon, CA
Down: 6 Mbps
Up: 640 Kbps
8-96 with deployment beginning in 9-97
SBC Comm. and Shell Oil
Houston, TX
Down: 6 Mbps
Up: 640 Kbps
Deployment late '97
Signet Partners
Austin, TX
Down up to 6 Mbps Deployment starts in 1997
Transport Logic,
Portland, OR
Down: 640 Kbps
Up: 275 Kbps
Deployment beginning in 1997
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