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To: NDBFREE who wrote (40320)	11/3/2002 10:36:10 AM
From: NDBFREE	Read Replies (1) \| Respond to of 42804

Part 2 (mentions LMNE) One of the intriguing developments in the metro is the ownership of final mile fiber links by enterprise customers. In deals frequently cut with carriers, enterprises are establishing long-term service relationships based on the premise that the fiber will terminate just short of the enterprise. This arrangement frees carriers from the worry of potentially sharing capacity with competitive entrants since they are not the actual owners of the line, says Mazur. Who's getting coarse? Luminent, an optical components division of MRV Communications, is one pf a handful of suppliers that has been bullish on CWDM for the past several years. The company recently released a complete CWDM solution set for metro and enterprise networks that includes a pluggable optical add drop multiplexer, small form factor pluggable, gigabit interface converter and small form factor CWDM transceivers. Near Margalit, Luminent's vice president of marketing and business development, says one of CWDM's chief attractions is that scaling for distance or capacity is minimal. "It's basically a poor man's way of getting into some of the benefits and cost reductions available from DWDM systems with low capital outlays," he says. Another major advantage that contributes to lower cost is - at least in the Luminent example - the ability to plug and play. "One of CWDM's main advantages over DWDM is that you can really provide really small transceivers that have all the functionality that can plug into an existing port. There isn't DWDM technology out that allows you to do the same plug and play," says Margalit. Despite its near-term promise, most observers agree that CWDM components in their current form are not future-proof. Distance shortcomings and capacity limitations are its most notable liabilities. "CWDM will reach saturation," says Vladimir Kozlov, RHK's senior analyst for optical components. "It will certainly last for two to four years and that's probably as far as most of the customers are looking today."