Nt1310

Define the following terms 1. Horizontal lineage A type of inside cable designed for plain employment in non-plenum aras. While horizontal cable must be drive out retardant, the National Electrical Code (NEC) specifications are not as demanding as those governing the use of plenum cable or riser cable. See in addition NEC, plenum, plenum cable, and riser cable. 2. Backbone Cable Backbone cabling is the inter-building and intra-building cable connections in organise cabling between entrance facilities, equipment rooms and tele communication theory closets.Backbone cabling consists of the transmission media, main and intermediate cross-connects and terminations at these locations. This system is mostly utilise in data centers. 3. Patch pile a short cord with a plug at each(prenominal) end, or a plug at one end and a pair of clips at the other, utilise for temporarily connecting two pieces of equipment or augur paths. 4. Connectors A device for holding two parts of an v oltaical film director in contact. 5. Conduit A tube or duct for enclosing electric telegraphs or cable. 6.Racks A computer rack (commonly called a rack) is a coat frame used to hold various hardware devices such as servers, hard disk drives, modems and other electronic equipment. Some may have-to doe with to a rack as LAN or network piece of furniture as resembles a shelving structure where components fire be attached vertically, load on top of one some other. A computer rack give the gate also be called a relay rack or devote rack. 7. Punch-Down Blocks is a type of electric connection often used in telephony. It is named because the solid copper wires are punched down into short open-ended slots which are a type of insularity-displacement connectors.These slots, usually cut crosswise (not lengthwise) across an insulating pliable bar, contain two sharp metal blades which cut through the wires insulation as it is punched down. These blades hold the wire in position and make the electrical contact with the wire as well. 8. Consolidation Points an optional device for interconnecting horizontal cables between the Horizontal Cross-Connect and the Telecommunications Outlet or MUTOA within a incorporate cabling system. 9. Crimpers A tool used to crimp, to join two pieces of metal 10.Fish memorialize a flat tempered spring-steel tape or wire used in pulling electric wire and cables (as into conduit runs) called also snake wire 11. Continuity Tester is an item of electrical running game equipment used to condition if an electrical path can be established between two points1 that is if an electrical circuit can be made. The circuit under test is completely de-energized prior to connecting the apparatus 12. kategory 5e/6 Cable cabling is used as a cabling infrastructure for 10BASE-T (Ethernet), full duplex 100BASE-TX (Fast Ethernet) and 1000BASE-T (Gigabit Ethernet, or GbE) networks.The Cat 5e standard provides performance of up to 100 MHz and can be used up to a maximum length of 100 meters. 13. ring-binder Groups A group of wire pairs bound together, usually by several(prenominal) sort of color-coded plastic tape or thread. In a greathearted perverse pair cable, there may be many pairs have into binder groups of 25 pairs for ease of connectivity management. Each pair within a binder group is uniquely color-coded for further ease of management. See also cable and wire. 14. Hybrid/Composite Cable composite cable A communications cable having both opthalmic and metallic signal-carrying components.Note 1 A cable having optical fiber(s) and a metallic component, e. g. , a metallic twisted pair, used solely for conduction of electric power to repeaters, does qualify as a composite cable. Note 2 A cable having optical fiber(s) , plus a metallic strength member or armor, does not qualify as a composite cable. Hybrid An optical communications cable having two or more different types of optical fibers, e. g. , single-mode and mult imode fibers. 15. wrench Cable The act of pulling the wires, as of a puppet hence, incomprehensible influence or management, especially in politics intrigue 6. Wavelengths of well-defined The length of a single cycle of a wave, usually careful from crest-to-crest. For electromagnetic waves 17. EMI is the disruption of operation of an electronic device when it is in the vicinity of an electromagnetic field (EM field) in the radio frequency (RF) spectrum that is caused by another electronic device. 18. Optical- grapheme Strand Is this referring to the actual pure glass on the centre of the fiber 19. Index of Refraction the ratio of the velocity of light in a vacuum to that in a medium. 0. wordnetweb. princeton. edu/perl/webwn 21. Cable Jacket The out protective coating which covers the core of the cable.. 22. Cladding Size A metal coating bonded onto another metal under high pressure and temperature. 23. Multifiber Cables Fiber optic Cable bearing many fibers independent ly sheathed and subject of carrying unrelated signals. They often surround a central strength member, and can be either loose- or tight-buffered. One standard configuration is a 12-fiber cable. 24. Differential Mode Delay 25.In an optical fiber, the variation in extension service delay that occurs because of the different group velocities of different modes. Synonym multimode group delay. 26. chromatic Dispersion In optics, dispersion is the phenomenon in which the phase velocity of a wave depends on its frequency,1 or alternatively when the group velocity depends on the frequency. Media having such a property are termed dispersive media. Dispersion is sometimes called chromatic dispersion to emphasize its wavelength-dependent nature, or group-velocity dispersion (GVD) to emphasize the subroutine of the group velocity