Question
What is the maximum number of centralized power supply units allowed in one line?
Answer
B — Two
Correct: It is not allowed to have more than two centralized PSUs in one line.
Source
KNX Basic Course Documentation — 6.1 — p. 106
All proposed choices (exam context)
- A.One
- B.Two✓
- C.Three
- D.Unlimited, as long as spacing is kept
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