RCDD · Question #230
A tapped trunk topology uses ________ cabling to support a DAS.
The correct answer is D. Optical fiber. A tapped trunk DAS topology distributes RF signals from a head-end unit to remote antenna units, and optical fiber is required for its low-loss, long-distance signal transport.
Question
A tapped trunk topology uses ________ cabling to support a DAS.
Options
- AShielded twisted pair
- BBalanced twisted pair
- CUnbalanced twisted pair
- DOptical fiber
How the community answered
(16 responses)- A13% (2)
- B6% (1)
- C6% (1)
- D75% (12)
Why each option
A tapped trunk DAS topology distributes RF signals from a head-end unit to remote antenna units, and optical fiber is required for its low-loss, long-distance signal transport.
Shielded twisted pair is designed for Ethernet and telephony data transmission and introduces too much RF signal attenuation for DAS distribution over distance.
Balanced twisted pair is suited for low-frequency audio and data signals, not for the high-frequency RF signal distribution required in a DAS.
Unbalanced twisted pair lacks the shielding and bandwidth characteristics needed for RF signal integrity in a DAS tapped trunk architecture.
Optical fiber provides extremely low signal attenuation over long distances, which is essential for transporting RF signals from the DAS head-end to each tapped remote unit across large buildings or campuses. Fiber also supports the wide bandwidth required to carry multiple frequency bands and radio technologies simultaneously without degradation.
Concept tested: DAS tapped trunk topology cabling media
Topics
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