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Technology Stocks : Newbridge Networks -- Ignore unavailable to you. Want to Upgrade?

To: nord who wrote (9898)	2/28/1999 2:22:00 PM
From: pat mudge	Respond to of 18016

<<<<< 4.2 DWDM in the metro area and to the home A number of companies have announced municipal area DWDM network products. Currently these products can support up to 64 WDM channels, each capable carrying 2.5 Gbps of data up to 80 km with no electrical or optical re-amplification. It is expected that in the next few years these systems will soon support of 100s if not 1000s wavelengths. Most of these DWDM systems can be deployed on existing fibers in metro areas today. More importantly, as no repeaters are required they provide for complete data transparency which can be used to deliver different types formatted data on the individual wavelengths. A 64 channel metro DWDM fiber ring can provide up to 150 pair wise connections depending on how many wavelengths can be re-used. Each one of these channels can support a dedicated Gigabit Ethernet or an OC-48 connection. DWDM multiplexers will also soon be directly incorporated into router interfaces thereby eliminating the need to have a separate physical interface for each DWDM channel. It is the physical interfaces that drive up the cost of any local access telecommunications systems. It is expected that the cost of DWDM technology will drop dramatically as its capacity increases over the next few years. It is conceivable that local access service providers will be able to connect homes in neighborhood with a single fiber and assign one or more DWDM channels to each home. The fiber could also interconnect different competitive NCAIPs and individual wavelengths could terminate on different NCAIPs. DWDM mesh concepts developed in optical Internets like CA*net 3 can be equally applied to a DWDM access network. Individual DWDM channels can be routed or cross connected through different fiber routes. Currently DWDM technology suffers from relatively high cost as it requires temperature compensated lasers to work effectively and hence DWDM will remain a costly proposition for the next few years, at least for the last 100 meters. A major area of research is to develop and manufacture low cost and stable DWDM components. However, in the local access DWDM environment, lasers, and interface equipment can ultimately be made cheaper because power, dissipation, density, and signal spread requirements are significantly less stringent than in the metro or long haul network implementations due to the very short distances. . . . . >>>>>> Nord --- It'll take a week to read the entire document, but it's clear NN's headed in the right direction by focusing on "Real World Networks" --- including wireless in the local loop. It's also clear JDS Fitel and SDLI are great Internet design plays. Every network architecture discussion you read includes DWDM. Thanks for posting the URL. It should generate some good discussion. Check out the new homepage, especially the scrolling headlines: newbridge.com And NN and CANARIE: prodweb.newbridge.com Pat