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Glossary

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Term Main definition
Consumables kit

Resupply material for splicing or terminating fiber optics.

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Contact

Contact - Referred to the conductive element in a connector that facilitates the transferring of the electrical energy form one side to the other.  A pin is usually the contact.

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Contact Size

Contact Size - This usually relates to the maximum size of the wire that the contact can nominally accommodate. It is based on that AWG size

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Continuity

An uninterrupted pathway for electrical or optical signals.

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Contractor

Company undertaking cellular antenna system rigging works.

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Controlled environmental vault (CEV)

A cable termination point in a below-ground vault whose humidity and temperature are controlled.

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Copper Distributed Data Interface (CDDI)

A version of FDDI that uses copper wire media instead of fiber-optic cable and operates at 100Mbps. See also twisted-pair physical media dependent (TP-PMD).

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Cordage

Fiber-optic cable designed for use as a patch cord or jumper. Cordage may be either single-fiber (simplex) or double fiber (duplex).

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Core

The central part of a single optical fiber in which the light signal is transmitted. Common core sizes are 8.3 microns, 50 microns, and 62.5 microns. The core is surrounded by a cladding that has a higher refractive index that keeps the light inside the core. The core is typically made of glass or plastic.

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Core eccentricity

A measurement that indicates how far off the center of the core of an optical fiber is from the center of that fiber

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Counter-rotating

An arrangement whereby two signal paths, one in each direction, exist in a ring topology.

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Coupler

With respect to optical fiber, a passive, multiport device that connects three or more fiber ends, dividing the input between several outputs or combining several inputs into one output.

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Coupling

The transfer of energy between two or more cables or components of a circuit. See also crosstalk.

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Coupling efficiency

How effective a coupling method is at delivering the required signal without loss.

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Coupling loss

The amount of signal loss that occurs at a connection because of the connection

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