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CDDI (Copper Distributed Data Interface)
Note: Many topics at this site are reduced versions of the text in "The Encyclopedia of Networking and Telecommunications." Search results will not be as extensive as a search of the book's CD-ROM.
CDDI is a version of FDDI (Fiber Distributed Data Interface) designed to run on shielded and unshielded twisted-pair cable. CDDI was developed separately by Cabletron and Crescendo. The companies then combined their technology work and received ANSI standards approval in 1993. A typical CDDI network consists of concentrators with a number of ports for the connection of workstations. Because CDDI has limited cable distances, a CDDI concentrator can connect to an FDDI ring as a subnetwork.
Copyright (c) 2001 Tom Sheldon and Big Sur Multimedia.