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Progression: Maintenance Tech I - II Conventional: Exam Prep, A+ Guide

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Progression: Maintenance Tech I - II Conventional: Exam Prep, A+ Guide-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 strand is tensioned so its sag profile matches that of the overhead utility power lines. With underground plant construction, - The fiber-optic and coaxial cables are often placed underground with other utility lines to jointly share construction costs. Standby power supplies - Continue providing an output voltage even during a utility power outage by using a backup power source. Centralized power configurations - Provide the advantage of increased reliability through sharing of expensive backup generators and sophisticated monitoring equipment among different power realms. When transmitting broadband signals - In a two-way hybrid fiber/coax (HFC) network, two or more individual optical fibers are required for each optical node location. RF trunk amplifiers [Show More]

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