Question
For at least how long can a KNX power supply unit bridge a short interruption of the mains?
Answer
C — 100 ms
Correct: The PSU can bridge short power gaps of a minimum of 100 ms.
Source
KNX Basic Course Documentation — 5.1 — p. 102
All proposed choices (exam context)
- A.1 s
- B.10 ms
- C.100 ms✓
- D.100 microseconds
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