Question
Which situation is NOT listed by the source as a cause of more significant interference on the bus?
Answer
C — Using a certified twisted-pair bus cable of the correct colour.
Correct: cable certification/colour is not listed as a cause of interference.
Source
KNX Basic Course Documentation — 14 — p. 115
All proposed choices (exam context)
- A.Installing bus devices in loops.
- B.Running bus and high-power mains in parallel over a long distance.
- C.Using a certified twisted-pair bus cable of the correct colour.✓
- D.Bus devices connected to metal walls or central-heating pipes.
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