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To: DenverTechie who wrote (4029)	6/4/1999 11:53:00 AM
From: Regis McConnell	Read Replies (1) \| Respond to of 12823

Anybody, know anything, about this "passive optical networking", sound interesting, or is this just a 'flavor' of existing FTTC, something currently available? BellSouth Plans Fiber-Optic Test June 4, 1999 ATLANTA - The Associated Press via NewsEdge Corporation : BellSouth Corp. plans to test a new type of fiber-optic data line at 400 suburban Atlanta homes this fall in what the company hopes will be its key to providing high-speed Internet access affordably. The test, which was announced today, involves 400 houses already selected in Dunwoody, BellSouth spokesman John Goldman said. In theory, the fiber can deliver data at 100 megabits per second, faster than the digital subscriber lines (DSL) BellSouth has been marketing. DSL, which transfers data at about 1.5 megabits per second, has encountered some technical difficulties because many homes are in areas not equipped to receive it. The fiber technology also would allow Atlanta-based BellSouth to compete with cable companies who offer high-speed Internet access. The company expects the fiber technology to be as cheap as copper wire in two years as demand grows, Goldman said. The new fiber, called passive optical networking, doesn't require a power source between the company and a customer's home. ''This is the next logical step,'' Goldman said. ''What we are doing in Dunwoody is getting ready for the future.'' Telephone and cable companies are scrambling to find ways to deliver increased speed for Internet connections as consumers turn to video and other data-heavy applications online. BellSouth will price the service at $59.95 per month, the same as its DSL service.

To: DenverTechie who wrote (4029)	6/7/1999 3:55:00 PM
From: MikeM54321	Read Replies (2) \| Respond to of 12823

Re: Adtran's MDSL DenverTechie, You would think that if Adtran had a product as revolutionary as their MDSL claims to be, that it would be on their website. I don't know if you caught this, but at the bottom of the article it says, "Adtran said Total Reach is available now; no pricing information was available." Yet I cannot seem to find it? Even doing a search on "Total Reach," turned up nothing that is tagged, "MDSL." I know Adtran is promoting HDSL2 which I'm totally confused about. Why would they be putting so much effort into HDSL2 when it only offers 1.544Mbps at a maximum of 12,000 feet? I thought all the other newer DSL flavors were offering equal to, or more bandwidth? Is it such a breakthrough that going from two-pair to one-pair would make this HDSL2 such a hot product for the carriers? Or is this a hot breakthrough because one-pair HDSL service means it can be deployed to houses as opposed to businesses? As you can tell, I'm confused about their market for HDSL2. I'm wondering if the Total Reach MDSL product is a fancy name for one of their current HDSL offerings? But they forgot to change the name in their website. Thanks, MikeM(From Florida) PS As I do my Due Diligence on ADTN, the stock price has gone from high teens to 31. ------------------------------ From their website: "Whether it be wide area networking or a simple voice call, T1 lines are the backbone of the communications network. Since the 1960s, 4-wire T1 circuits (regular copper T1s, and more recently HDSL) have been the norm for T1 circuit deployment. However, with more and more demand for higher bandwidth services, the availability of copper pairs is rapidly being exhausted. In an effort to provide for the savings of copper pairs in the network, ANSI's T1E1.4 subcommittee is developing a new standard to provide transport of T1 services over a single pair of copper. This new standard is HDSL2. The objective of HDSL2 is to deploy a 2-wire digital T1 transport technology on the same copper facilities used for deploying 4-wire HDSL. In addition to the deployment issues, interoperability among equipment vendors is also a stated objective of HDSL2. The goal of HDSL2 is to transport T1 traffic on a single-pair of copper using CSA design guidelines."