N10-005 · Question #892
The cost of installing fiber cable in a factory environment is too high. Which of the following cables should be used to minimize the effect of EMI?
The correct answer is C. Coaxial. Coaxial cable has a built-in metallic shield that significantly reduces electromagnetic interference (EMI), making it the best choice for factory environments.
Question
The cost of installing fiber cable in a factory environment is too high. Which of the following cables should be used to minimize the effect of EMI?
Options
- ACAT6
- BUTP
- CCoaxial
- DCrossover
How the community answered
(29 responses)- B7% (2)
- C90% (26)
- D3% (1)
Why each option
Coaxial cable has a built-in metallic shield that significantly reduces electromagnetic interference (EMI), making it the best choice for factory environments.
CAT6, while an improvement over CAT5e, is still an unshielded twisted pair cable in its standard form and remains susceptible to EMI in high-interference environments.
UTP (Unshielded Twisted Pair) explicitly lacks shielding and is the most vulnerable cable type to EMI.
Coaxial cable consists of a central conductor surrounded by an insulating layer, a metallic braid or foil shield, and an outer jacket. This shielding design blocks external electromagnetic interference, making it far more resilient than unshielded alternatives in electrically noisy industrial environments such as factories with heavy machinery.
A crossover cable is a wiring configuration of twisted pair cable (used for direct device-to-device connections), not a cable type with EMI shielding properties.
Concept tested: Coaxial cable shielding for EMI resistance in industrial environments
Source: https://learn.microsoft.com/en-us/previous-versions/windows/it-pro/windows-server-2003/cc787500(v=ws.10)
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