Question

What does the abbreviation CSMA/CA stand for in KNX TP bus access?

KNX BasicLearnSystem OverviewMedium
Answer

D — Carrier Sense Multiple Access with Collision Avoidance

Correct: CSMA/CA stands for Carrier Sense Multiple Access with Collision Avoidance.

Source

KNX Basic Course Documentation — 8 — p. 49

All proposed choices (exam context)
  1. A.Carrier Sense Multiple Access with Collision Detection
  2. B.Central Signal Management with Automatic arbitration
  3. C.Cyclic Slot Multiple Access with Contention Avoidance
  4. D.Carrier Sense Multiple Access with Collision Avoidance
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Last updated: 19 May 2026

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