USIC Cable Plant Basics

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  1. access point
    specific place on a facility that allows access to a cable or pipe for the purpose of applying an active signal
  2. amplifier
    an electronic device that boosts the strength of a cable signal; amplifiers can add noise or distortion to cable signals
  3. bridging amplifier
    an electronic device that converts low-powered trunk line signals into high-powered feeder line signals; bridging amplifiers are enclosed in aerial cases or in aboveground peds
  4. bridging amplifier case
    a casing that encloses and protects a bridging amplifier installed on an aerial cable line
  5. bridging amplifier ped
    an aboveground enclosure that houses a bridging amplifier
  6. broadband
    digital systems and equipment that provide consumers voice services, high speed data services, video on demand services, and interactive delivery services.
  7. cable distribution system
    the second part of the cable system, used to transport cable signals to streets and easements.
  8. cable service system
    third part of cable system that is used to transport cable signals to industrial, commercial, and residential buildings.
  9. cable transmission system
    the first part of the cable system that is used to transport cable signals over great distances before they are distributed to customers.
  10. cascade
    series of amplifiers in a distribution system in which the output of one amplifier feeds into the input of another amplifier; cascades maintain signal strength throughout the distribution system
  11. center conductor
    the inner core of a coaxial cable that consists of a solid copper, copper clad steel, or copper clad aluminum wire.
  12. coaxial cable
    a type of cable, which is the most common means for transmitting signals, that consists of a center conductor surrounded by an insulating material and an outer conductor.
  13. common ground
    an electrical ground used by more that one facility.
  14. dielectric
    the insulation material, which is typically polyethylene, that separates the center conductor and the shield of a coaxial cable
  15. directional coupler
    a passive device, which is contained in a bridging amplifier, that transfers energy from trunk lines to feeder lines by means of induction
  16. downstream
    the direction of signals through the cable system from the headend  to customers
  17. feeder line
    coaxial and fiver optic cable used in the distribution system that runs from bridging amplifiers to line extenders and subscriber taps in peds
  18. fiber loop
    an extra length of fiber optic cable that is looped on aerial cable lines and near fiber nodes; provide easy access to fiber optic lines and make splicing lines easier.
  19. fiber node
    the point at which fiber optic trunk line terminate, that converts light energy used into electromagnetic energy used in coaxial lines
  20. fiber optic lines
    type of cable consisting of very small diameter glass fibers that transmit cable signals on beams of light with very low energy loss
  21. FTTC
    fiber to the curb- fiber from headend to subscriber drop
  22. FTTP
    fiber to the premises- fiber from the headend to security boxes
  23. Filter
    a passive device used in amplifiers to allow some frequencies to pass through, while reducing the strength of other frequencies; filter separates and direct signals on multiple paths
  24. ground block
    a small, metal device that provides a means to  ground the shield of a subscriber drop
  25. headend
    the electronic control center that amplifies, converts, processes, and combines all signals transmitted in a cable system
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USIC Cable Plant Basics
2013-06-10 16:16:15

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