Topic 14, Private CATV Distribution Systems Flashcards
(13 cards)
A building has six floors plus a basement. Each floor is 10,000 square feet and has approximately 50 CATV outlets respectively. There is a single hardline trunk cable installed from the basement headend passing through the telecommunications room (TR) on each floor. What is usually the MOST cost effective coaxial cable design to implement on the horizontal distribution from the telecommunications room (TR)?
A. Trunk and tap
B. Home run
C. Video over balanced twisted-pair
D. Video over optical fiber
A. Trunk and tap
The headend has several audio-video playback devices within it. What piece of equipment is required to assign their output signals to specific RF carriers on the CATV system?
A. Modulator
B. Combiner
C. Splitter
D. Multiport tap
A. Modulator
You are designing a building with a combination of Class A commercial office spaces and residences. The design program requires having unlimited cable channels available at all outlet locations. What distribution system topology will NOT provide adequate channel distribution to each location?
A. Video over balanced twisted-pair
B. Trunk and tap
C. Home run
D. Video over optical fiber
A. Video over balanced twisted-pair
A building has six floors plus a basement. Each floor is 10,000 square feet and has approximately 50 CATV outlets respectively. There is a single hardline trunk cable installed from the basement headend passing through a directional coupler in each floor’s telecommunications room (TR). Which leg of the coupler will have the LEAST signal loss?
A. Tap
B. Through
C. Splitter
D. Port
B. Through
The headend has several modulators assigning frequencies for distribution to the CATV network. What distribution device should you use immediately at the headend to distribute the modulator’s output signals to CATV system?
A. Splitter
B. Directional coupler
C. Combiner
D. Multiport tap
C. Combiner
What is the appropriate impedance of coaxial cable for use with broadband distribution?
A. 50
B. 75
C. 100
D. 150
B. 75
A building has six floors plus a basement. Each floor is 929 sq m (10,000 sq ft) and has approximately 50 CATV outlets respectively. There is a single hardline trunk cable installed from the basement headend passing through the telecommunications room (TR) on each floor. In order to maintain the LEAST signal loss passing through each telecommunications room (TR) to the next telecommunications room (TR), what device should you specify for use within each telecommunications room (TR)?
A. Splitter
B. Directional coupler
C. Multiport tap
D. Combiner
B. Directional coupler
Active video converters are required for what type of CATV distribution system?
A. Video over balanced twisted-pair
B. Trunk and tap
C. Home run
D. Video over optical fiber
A. Video over balanced twisted-pair
A building has a series of CATV outlets each with cables installed back to a telecommunications room (TR), and each telecommunications room (TR) is connected to the headend. What is this type of topology called?
A. Star
B. Mesh
C. Bus
D. Series
A. Star
Which of the following is NOT an element of a cable system?
A. Headend
B. Distribution system
C. Subscriber drop
D. Television
D. Television
In a main equipment room a headend connected to splitters running to work area outlets for CATV represents what type of CATV distribution system?
A. Home run
B. Trunk and tap
C. Video over balanced twisted-pair
D. Video over optical fiber
A. Home run
An active video converter is used in what type of CATV cable distribution system?
A. Trunk and tap
B. Video over balance twisted-pair
C. Video over optical fiber
D. Home run
B. Video over balance twisted-pair
A Headend with one connection to several taps indicates what type of CATV distribution system?
A. Trunk and tap -
B. Video over balanced twisted-pair
C. Video over optical fiber -
D. Home run -
A. Trunk and tap
