Page 99 of Current Product Catalog by World Class Wire and Cable

material may also serve as the protective covering insulated end caps are considered joints in this context cable loss ­ the amount of rf radio frequency signal attenuated by coaxial cable transmission the cable attenuation is a function of frequency media type and cable distance for coaxial cable higher frequencies have greater loss than lower frequencies and follow a logarithmic function cable losses are usually calculated for the highest frequency carried on the cable cable pressurized ­ a cable having a pressurized fluid gas or oil as part of the insulation nitrogen and oil are the most common fluid cable spacer ­ an aerial distribution cable made of covered conductors held in place by insulated spacers designed for wooded areas cable tray ­ a multi-conductor cable having a non-metallic jacket designed for use in cable trays per the national electrical code cabling ­ the method by which a group of insulated conductors is mechanically assembled or twisted together cac ­ flexible conductor insulation dielectric tape insert felted asbestos lacquered braid overall 1000v 125c cad ­ computer-aided design calc ­ customer access line charges basic rates paid for lines from customer premises to the central office cam ­ computer-aided manufacture candela cd ­ the basic si unit for luminous intensity the candela is defi ned as the luminous intensity of 1/600,000 of a square meter of a blackbody at the temperature of freezing platinum 2045k at 101 325 pascal canvasite cord ­ 2 conductors stranded copper rubber insulation and braid twisted together and fi nished with weather proof braid capacitance ­ the ability of a dielectric material between conductors to store electricity when a difference of potential exists between the conductors the unit of measurement is the farad which is the capacitance value which will store a charge of one coulomb when a one-volt potential difference exists between the conductors in as one farad is the capacitance value which will permit one ampere of current when the voltage across the capacitor changes at the rate of one volt per second capacitive reactance ­ the opposition to alternating current due to the capacitance of a capacitor cable or circuit it is measured in ohms and is equal to 1/6.28fc where f is the frequency in hz and c is the capacitance in farads capacitor two conducting surfaces separated by a dielectric material the capacitance is determined by the area of the surface types of dielectric and spacing between the conducting surfaces capillary action ­ the traveling of liquid along a small interstice due to surface tension carrier an ac electrical signal that is used to carry information cathode ­ 1the negative electrode through which current leaves a nonmetallic conductor such as an electrolytic cell 2the positive pole of a storage battery 3vacuum tube ­ the electrode that emits electrons cathode-ray tube ­ the electronic tube which has a screen upon which a beam of electrons from the cathode can be made to create images for example the television picture tube cathodic protection ­ reduction or prevention of corrosion by making the metal to be protected the cathode in a direct current circuit catv ­ community antenna television refers to the use of a coaxial cable to transmit television or other signals to subscribers from a single head end location catv cable ­ general term for all cables used for community antenna tv service and feeders distribution and house drops cb ­ citizens band one type of two-way radio communication cb ­ brewery cord rubber insulation cotton braid treated with a weather proof compound conductors twisted together no outer covering voltage limit 300 cbo ­ portable cord known as brewery cord neoprene insulation conductors twisted together no outer covering 300v ccis ­ common channel interface signaling an electronic means of signaling between any two switching systems independent of the voice path the use of ccis makes possible new customer services versatile net-work features more flexible call routing and faster call connections ccitt ­ a united nations-sponsored organization in geneva switzerland devoted to establishing worldwide communications standards in english it is known as the international consultative committee for telephone and telegraph c conditioning ­ a type of line conditioning that controls attenuation distortion and delay distortion so they lie within specific limits c connector ­ a bayonet-locking connector for coax c is named after carl concelman cctv ­ closed-circuit television one of the many services often found on broadband networks ccw ­ continuously corrugated and welded a type of cable sheath cd ­ collision detect the ability of a transmitting node to detect simultaneous transmission attempts on a shared medium cd ­ carrier detect an rs-232 control signal on pin 8 which indicates that the local modem is receiving a signal from the remote modem also called received line signal detector rsld and date carrier detect dcd cellular polyethylene expanded or foam polyethylene consisting of individual closed cells of inert gas suspended in a polyethylene medium resulting in a desirable reduction of dielectric constant cfc ­ two or three types of fi xture wires twisted together no outer covering 300v 90c cfr ­ code of federal regulations the general and permanent rules published in the federal register by the executive departments and agencies of the federal government cfpd ­ two or three type of fi xture wires cabled together with a cotton or rayon braid overall 300v 90c cfpo ­ two type of fi xture wires laid parallel with a cotton or rayon braid overall 300v 90c channel 1 a path for electrical transmission also called a circuit facility line link or path 2 a specific and discrete bandwidth allocation in the radio frequency spectrum for example in a broadband lan utilized to transmit one information signal at a time channel translator ­ device used in broadband lans to increase carrier frequency converting upstream toward the head-end signals into downstream signals away from the head-end charge ­ the cause of material bodies exerting forces on each other of repulsion or attraction the unit of measure is the coulomb which corresponds to a charge of 6.24x10 electrons charging current ­ see current charging chlorosulfonated polyethylene cspe ­ better known as hypalon a dupont trademark used as a 105c rated motor lead wire insulation but is primarily a jacketing compound the material has low moisture absorbtion excellent resistance to flame and heat and good dielectric properties cim ­ computer integrated manufacturing the automation architecture requiring open communication between intelligent factory devices and the controlling computer systems circuit ­ a system of conducting mediums designed to pass an electric current circuit switching ­ a switching technique in which an information path i.e circuit between calling and called stations is established on demand for exclusive use by the connected parties until the connection is released circular mil ­ a term used to defi ne cross sectional areas using an arithmetic short-cut in which the area of a round wire is taken as diameter in mils 001 squared the cross-sectional area in circular mills is equal to the square of the diameter in mils clad wire ­ different from coated wire is any metal covered with a relatively heavy coating of different metal such as copperweld copper over steel or alumo-weld aluminum over steel see coated wire clc ­ ibm s acronym for cluster controller the central node in a star-shaped cluster network which governs all messages traffic to and from the other nodes cm ­ circular mils cmip ­ common management information protocol the network management standard by osi cmx ­ a thermocouple wire cmx series ­ ungermann-bass 3270 multi-plexer product line c/n ­ carrier-to-noise ratio coated wire ­ any metal covered by a relatively thin coating of a different metal such as tin zinc or other alloy by a dip bath and wipe process often at high speeds in line with insulating equipment coaxial cable ­ a cylindrical transmission line comprised of a conductor centered inside a metallic tube or shield separated by a dielectric material and usually covered by an insulating jacket codec ­ an assembly comprising an encoder and a decoder in the same equipment coil effect ­ the inductive effect exhibited by a spiral wrapped shield especially above audio frequencies cold-drawing ­ reducing the cross section by pulling through a die or dies at a temperature lower than the recrystallization temperature collision detection cd ­ the ability of a transmitting node to detect simultaneous transmission attempts on a shared medium combination stranded conductor ­ a conventional concentric conductor in which the wires in the outer layer are larger in diameter than the wires in the inner layer or layers and the diameters of all wires are within plus and minus 5 percent of the nominal wire diameter corporate headquarters w234 n2091 ridgeview parkway court waukesha wi 53188-1023 www.wcwc.com phone 262.951.7777 purchasing/acct fax 262.951.7704 sales fax 262.951.7778 97 glossary

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