Question

KNX interworking (devices from different manufacturers cooperating) relies on standardisation of which elements?

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Answer

A — The telegrams and the useful data within them (data formats for switching, dimming, shutter, HVAC)

Correct: standardised telegrams and standardised useful-data formats.

All proposed choices (exam context)
  1. A.The telegrams and the useful data within them (data formats for switching, dimming, shutter, HVAC)✓
  2. B.The cable colours and connector shapes
  3. C.The power supply voltage and choke design
  4. D.The brand of ETS licence used
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