Question

What does a KNX RF S-Mode device send as its device identifier?

KNX BasicLearnKNX RFMedium
Answer

A — Its domain address.

Correct: KNX RF S-Mode devices send their domain address as device identifier.

Source

KNX Basic Course Documentation — 4.1 — p. 150

All proposed choices (exam context)
  1. A.Its domain address.
  2. B.Its serial number.
  3. C.A hardware MAC address.
  4. D.Its area/line topology address.
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Last updated: 19 May 2026

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