To: Jill who wrote (732 ) 8/4/1999 3:32:00 PM From: Beltropolis Boy Read Replies (1) | Respond to
>Yikes! I can't understand it at all...it was a heroic post but for the nontechnically minded...can somebody translate? Multiplexing: sending multiple signals or streams of information at the same time in the form of a single, complex signal and then recovering the separate signals at the receiving end. Wavelength Division Multiplexing (WDM): a technology that puts data from different sources together on an optical fiber, with each signal carried on its own separate light wavelength. Using WDM, up to 80 (and theoretically more) separate wavelengths or channels of data can be multiplexed into a lightstream transmitted on a single optical fiber.SONET: SONET is the U.S. (ANSI) standard for synchronous data transmission on optical media. The international equivalent of SONET is synchronous digital hierarchy (SDH). Together, they ensure standards so that digital networks can interconnect internationally and that existing conventional transmission systems can take advantage of optical media.key word ) replacing the carrier's current gear, SONET. these vendors espouse all-optical networks because today's SONET networks are designed for voice, not data, and are difficult to grow. (e.g., SONET design rules require all gear on a ring to have the same operational speed; therefore, a carrier must make a forklift upgrade of all the gear on a ring to increase its capacity from OC12 to OC48.)
