| C |
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| C |
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Symbol designation for capacitance, and Celsius. |
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| Cable |
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A group of individually insulated conductors twisted helically. |
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| Cable Assembly |
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A completed cable and its associated hardware (e.g., connector). |
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Capacitance |
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The property of an electrical conductor (dielectric in a capacitor)
that permits the storage of energy as a result of electrical
displacement. The basic unit of capacitance is the Farad, however,
measurement is more commonly in microfarads or picofarads. |
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| Circuit |
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A system of conducting media designed to pass an electric
current. |
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| CATV |
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Abbreviation for Community Antenna Television. |
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| CCTV |
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Closed-circuit television |
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| Coaxial Cable |
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A transmission line consisting of two concentric conductors
insulated from each other. In its flexible form itconsists of
either a solid or stranded centre conductor surrounded by a
dielectric. A braid is then woven over the dielectric to form
an outer conductor. A weatherproof plastic covering is placed
on top of the braid. |
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| Conductivity |
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A measure of the ability of a material to conduct electric
current under a given electric field. Resistivity is the reciprocal
of conductivity. |
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| Connector |
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Used generally to describe all devices used to provide rapid
connect/ disconnect service for electrical cable and wire terminations
or pc boards. |
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| Contact |
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The conducting part of an interconnect at the interface between
the connector and the lead on the device being connected. |
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| Contact Cavity |
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A defined hole in the connector insert or housing into which
the contact must fit. |
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| Contact Durability |
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The number of insertion and withdrawal cycles that a connector
must be capable of withstanding while remaining within the performance
levels of the applicable specification. |
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Contact Engaging &
Separating Force |
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Force needed to either engage or separate pins and socket
contact when they are in and out of connector inserts. Values
are generally established for maximum and minimum forces. Performance
acceptance levels vary by specification and /or customer
requirements. |
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| Contact Plating |
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Deposited metal applied to the basic contact metal to provide
the required contact-resistance and / or wearresistance. |
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| Contact Pressure |
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Force which mating surfaces exert against one another. |
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| Contact Resistance |
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Measurement of electrical resistance of mated contacts when
assembled in a connector under typical service use. Electrical
resistance is determined by measuring from the rear of the electrical
area of one contact to the rear of the electrical area of one
contact to the rear of the contact area of the mating contact
(excluding both crimps) while carrying a specified test current. |
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| Core |
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The light conducting central portion of an optical fiber with
a refractive index higher than that of the cladding. The center
of a cable construction. Most often applies to a coaxial cable,
where the core is the center conductor and the dielectric material
applied to it. |
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| Corona |
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A luminous discharge due to ionization of the air surrounding
a conductor caused by voltage gradient exceedinga certain critical
value |
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| Coupling |
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The transfer of energy between two or more cables or components
of a circuit |
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| Crimp |
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Act of compressing (deforming) a connector ferrule around
a cable in order to make an electrical connection |
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| Crimping Tool |
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A term commonly used to identify a hand held mechanical device
or table press that is used to crimp a contact, terminal or
splice. |
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| Current, Alternating(ac) |
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An electric current that periodically reverses direction of
electron flow. The rate at which a full cycle occurs in a given
unit of time (generally a second) is called the frequency of
the current. |
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| Current, Direct(dc) |
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Electrical current whose electrons flow in one direction only.
It may be constant or pulsating as long as its movement is in
the same direction. |
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| Cut-off Frequency(fc) |
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The frequency, above which other than the TEM mode may occur.
The transmission characteristics of cables above their cutoff
frequency may be unstable. |
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| Cycle |
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One complete sequence of values of an alternating quantity,
including a rise to maximum in one direction and return to zero;
a rise to maximum in the opposite direction and return to Zero.
The number of cycle occurring in one second is called the frequency |
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