CDDI | Article about CDDI by The Free Dictionary
Also found in: Acronyms
CDDI(Copper Distributed Data Interface) A version of FDDI that uses UTP (unshielded twisted pair) wires rather than optical fiber. The technology was developed by Crescendo Communications, Sunnyvale, CA, which was acquired by Cisco in 1993. ANSI's standard for FDDI over UTP is officially TP-PMD (Twisted Pair-Physical Media Dependent).
References in periodicals archive
The eXOS 505S CDDI
card delivers the speed and bandwidth performance of fiber-optic networks on IBM Token Ring copper cables at a much lower expense.
A cheaper option is to run FDDI over unshielded twisted-pair wiring--a version known as CDDI
(copper distributed data interface).