David, I have been following a couple ADSL companys over the past year and it appears as though the networking industry is starting to focus it's attention towards ADSL. With adtn's main focus on ISDN and HDSL, I can't help but think that may be some of the blame for their recent decline. I found the following at Pairgain's website. You might find some interesting reading at the amati message boards also. There are some people over there who have done a lot of research into xdsl and post some pretty informative info. Of course; most of them are biased towards amati, but there is some good info to be found as well.
<< As telcos and private organizations continue to look for more efficient, timely and cost-effective ways to connect users and networks, HDSL promises to play a vital role. As corporations increasingly rely on highly-available switching based backbone networks for their business needs, it becomes essential to extend the performance and bandwidth benefits of the backbone to all parts of the enterprise. HDSL is a key enabling technology that allows a wide range of high-speed digital connectivity options from the backbone network to other corporate sites over existing copper wiring.
On the horizon, is an extension to HDSL, asymmetrical digital subscriber line (ADSL), capable of transmitting signals over copper cable at 6 Mbps. ADSL uses an advanced signal processing technique that significantly transforms traditional copper transmission speeds. It sends signals in one direction at extreme speeds (up to 6 mbps), while the return channel operates at a more modest rate of 100 to 600 kbps. The ADSL channel is transparent to normaltelephone activity, and can be accomplished using the same copper pair. Going forward, ADSL will have widespread impact and application. The power of the home computer -- on-line shopping, banking, video phones and video on demand -- can be made reality with ADSL, which uses the copper cable resources on hand in every residence. ADSL technology will make these advanced consumer applications economically feasible.>> Boogaloo
p.s. I live in Huntsville also. |