Term of the Moment


Look Up Another Term

Definition: 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).