Hfc designer - Study guides, Class notes & Summaries

HFC Designer I – II Exam Questions 2024 with 100% correct answers

In the tree-and-branch architecture, how is the downstream signal from the trunk fed to the distribution branches? - Correct answer-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? - Correct answer-Node splitting, the subdividing of serving ar...

What advantage is realized by increasing the voltage in a broadband cable network from 60 volts alternating current (VAC) to 90 volts? - Correct answer-Operating with 50% more voltage reduces the voltage drop and current drawn in the network for more efficient power utilization. How does surge protection at the input and output of a ferroresonant power supply defend against voltage surges? - Correct answer-By passing voltage surges (within the surge device rating) to ground without damage....

In a hybrid fiber/coax HFC fiber optic node, what are common voltages produced by DC power supplies? - Correct answer-Common Voltage includes +5, +12 and +24 VDC Why do many optical nodes accept two independent power supplies? - Correct answerFor redundant Powering of the node. What is an option available on most optical nodes for connectin to the power supply? - Correct answer-Through a power cable that is connected from the power supply directly to the power port of the node. Which of th...