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Progression Maintenance Tech II - III Conventional Study Guide.
- Exam (elaborations) • 25 pages • 2023
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buffer tubes - A flexible cylindrical structure that houses, compartmentalizes, and protects smaller groups of optical fibers within larger multi-fiber cables. 
 
pigtails - A length of optical fiber with a connector at only one end, which may be spliced to a smaller diameter optical fiber for testing or termination. 
 
acceptance testing - Length and loss test of fiber-optic cable that is typically performed twice—when the cable is received from the manufacturer and after the cable is i...
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Progression Maintenance Tech I - II Conventional Study Guide.
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Customer premises - Connected to the network through distribution taps spliced into the coaxial cable. 
 
Branches in the architecture - The downstream signal is distributed within nearby neighborhoods using 0.412-inch to 0.625-inch diameter coaxial cable, splitters, and directional couplers. 
 
Bridger amplifier - A portion of the downstream signal is boosted before being split and routed to as many as four separate coaxial cables—the branches in the architecture. 
 
Trunk amplifiers - ...
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Progression Maintenance Tech I - II Conventional Question and Answers.
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In the tree-and-branch architecture, how is the downstream signal from the trunk fed to the distribution branches? - Within each trunk amplifier, a portion of the downstream is fed to a bridger amplifier to boost the signal before being split and routed to the distribution branches. 
 
What is a common solution when congestion from modem activity and traffic becomes unacceptable in a hybrid fiber/coax (HFC) network? - Node splitting, the subdividing of serving areas into two or more smaller ...
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Progression Maintenance Tech I - II Conventional NCTI 2020
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According to SCTE- and NCTA-recommended trunk system map symbols, fiber-optic cable is represented by - Double arrows within a small circle on a solid line. 
 
The forward path signal in a traditional tree-and-branch architecture - Originates at the headend and is transmitted downstream through coaxial trunk cable and trunk amplifiers. 
 
In an HFC network, - Processing equipment in the headend converts the forward RF signal to a light signal. 
 
During aerial plant construction, - The s...
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