Question

What brightness step does the transmitter send in each cyclical dimming telegram in the course example?

KNX BasicLearnKNX Bus DevicesMedium
Answer

C — Increase brightness by 12.5 %.

Correct: the transmitter repeatedly sends 'increase brightness by 12.5 %'.

Source

KNX Basic Course Documentation — 4.2 — p. 131

All proposed choices (exam context)
  1. A.Increase brightness by 1.25 %.
  2. B.Increase brightness by 25 %.
  3. C.Increase brightness by 12.5 %.
  4. D.Increase brightness by 50 %.
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Last updated: 19 May 2026

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