Question

What is the function of a media coupler in a KNX installation?

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Answer

D — It transfers information and commands between devices on different transmission media (e.g. RF and TP).

Correct: the media coupler passes telegrams from devices on one medium to devices on another.

Source

KNX Basic Course Documentation — 4.2 — p. 151

All proposed choices (exam context)
  1. A.It converts 230 V mains into the bus voltage for RF devices.
  2. B.It stores telegrams and replays them after a fixed delay.
  3. C.It automatically assigns individual addresses to all RF devices.
  4. D.It transfers information and commands between devices on different transmission media (e.g. RF and TP).
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Last updated: 19 May 2026

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