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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 |
Speed |
Trial dates |
| ALLTEL Dalton, GA & Hudson, OH |
Down: 1.5 Mbps Up:64 Kbps |
9-96 |
| 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 |
9-96 |
| BellSouth 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 |
| GTE 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 |
| InterAccess 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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