Complete Protocol dictionary, glossary and reference

CDDI: Copper Distributed Data Interface

Copper Distributed Data Interface (CDDI), a version of FDDI using twisted pair cables, provides data rates of 100 Mbps and uses dual-ring architecture to provide redundancy. CDDI supports distances of about 100 meters from desktop to concentrator. The CDDI standard is officially named as the Twisted-Pair Physical Medium-Dependent (TP-PMD) standard. It is also referred to as the Twisted-Pair Distributed Data Interface (TP-DDI).

Standard Organization

ANSI

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