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Questions and Answers
Why are optical fiber links replacing co-axial trunks between telephone exchanges?
Why are optical fiber links replacing co-axial trunks between telephone exchanges?
- To reduce the number of repeaters required
- Because of low maintenance cost
- Due to low attenuation and high transmission bandwidth (correct)
- Because of ease of installation
What is the advantage of using optical waveguide in urban broadband service networks?
What is the advantage of using optical waveguide in urban broadband service networks?
- It requires more repeaters
- It is more costly than co-axial cable
- It provides a higher transmission bandwidth (correct)
- It provides a lower transmission bandwidth
What is the function of Q1 in the fiber optic transmitter circuit?
What is the function of Q1 in the fiber optic transmitter circuit?
- To amplify the signal
- To convert the electrical signal to an optical signal
- To receive the sound signal
- To bias a transistor (correct)
What is the function of MIC1 in the fiber optic transmitter circuit?
What is the function of MIC1 in the fiber optic transmitter circuit?
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Why is Q2 used in the fiber optic transmitter circuit?
Why is Q2 used in the fiber optic transmitter circuit?
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What is the advantage of using NE555 in the fiber optic transmitter circuit?
What is the advantage of using NE555 in the fiber optic transmitter circuit?
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What is the purpose of C1 in the fiber optic transmitter circuit?
What is the purpose of C1 in the fiber optic transmitter circuit?
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What is the function of the transmitter circuit in fiber optic transmission?
What is the function of the transmitter circuit in fiber optic transmission?
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What is the advantage of using optical fiber links over co-axial trunks?
What is the advantage of using optical fiber links over co-axial trunks?
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What is the purpose of using repeaters in fiber optic transmission?
What is the purpose of using repeaters in fiber optic transmission?
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