Define the following terms:

1. Horizontal Cable : A type of inside cable designed for horizontal use in non-plenum areas. While horizontal cable must be fire retardant, the National Electrical Code (NEC) specifications are not as demanding as those governing the use of plenum cable or riser cable. See also NEC, plenum, plenum cable, and riser cable.

2. Backbone Cable : Backbone cabling is the inter-building and intra-building cable connections in structured cabling between entrance facilities, equipment rooms and telecommunications closets. Backbone cabling consists of the transmission media, main and intermediate cross-connects and terminations at these locations. This system is mostly used in data centers.

3. Patch
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 multimode fibers.

15. Pulling Cable : The act of pulling the wires, as of a puppet; hence, secret influence or management, especially in politics; intrigue

16. Wavelengths of Light: The length of a single cycle of a wave, usually measured 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-Fiber Strand : Is this referring to the actual pure glass on the middle of the fiber

19. Index of Refraction : the ratio of the velocity of light in a vacuum to that in a medium. 20. wordnetweb.princeton.edu/perl/webwn

21. Cable Jacket : The outer 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 independently sheathed and capable 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.

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