Copper Distributed Data Interface (CDDI)

A high-speed token-passing technology that employs two rings with traffic flowing in opposite directions. FDDI offers transmission rates of 100 Mbps and is often used as a backbone to large enterprise networks. LAN standard, defined by ANSI X3T9. 5, specifying a 100Mbps tokenpassing network using fiberoptic cable, with transmission distances of up to two kilometers. FDDI uses a dualring architecture to provide redundancy.
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A generic term for “telephone” wire used to carry data such as 10BaseT and 100BaseT. Various categories (qualities) of cable exist that are certified for different kinds of networking technologies. A twisted-pair wire that does not include additional EMI protection. Most twisted-pair wiring is UTP.
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Highdatarate Digital Subscriber lLne. One of four DSL technologies. HDSL delivers 1. 544 Mbps of bandwidth each way over two copper twisted pairs. Because HDSL provides T1 speed, telephone companies have been using HDSL to provision local access to T1 services whenever possible. The operating range of HDSL is limited to 12,000 feet (3658. 5 meters), so signal repeaters are installed to extend the service. HDSL requires two twisted pairs, so it is deployed primarily for PBX network connections, digital loop carrier systems, interexchange POPs, Internet servers, and private data networks. Compare with ADSL, SDSL, and VDSL.
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A type of network cable that consists of four pairs of wires that are twisted around each other and then sheathed in a PVC insulator. Also called twisted-pair.
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A communication medium that consists of pairs of wires that are twisted together and bound into cable.
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