Unit 4 Exercise 1 Cabling – Definitions

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Andrey Borsch NT1310 Unit 4 Exercise 1 4-18-14 Cabling - Definitions Horizontal Cable - The cabling between and including the telecommunications outlet and the horizontal cross-connect. Horizontal cabling is considered the permanent portion of a link; may also be called horizontal wiring. Backbone Cable - The physical/electrical interconnections between telecommunications rooms and equipment rooms Patch Cord - Any flexible piece of cable that connects one network device to the main cable run or to a patch panel that in turn connects to the main cable run. Used for interconnecting circuits on a patch panel or cross-connect. Patch cables are short distance, usually have connectors preinstalled on both ends, are used to connect equipment, and are generally between 3 and 6 meters long. Connector - With respect to cabling, a device attached to the end of a cable, receiver, or light source that joins it with another cable, device or fiber. A connector is a mechanical device used to align and join two conductors or fibers together to provide a means for attaching and decoupling it to a transmitter, receiver, or another fiber. Commonly used connectors include the RJ-11, RJ-45, BNC, FC, ST, LC MT-RJ, FDDI, Biconic, and SMA connectors. Conduit - A rigid or flexible metallic or nonmetallic raceway of circular cross section in which cables are housed for protection and to prevent burning cable from spreading flames or smoke in the event of a fire. Racks - A frame-like structure where patch panels, switches, and other network equipment are installed. The typical dimension is 19 inches. Punch-down blocks - A generic name for any cross-connect block where the individual wires in UTP are placed into a terminal groove and “punched down” with a special tool. The groove pierces the insulation and makes contact with the inner conductor. The punch-down operation may also trim

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