Question

What does the maximum number of devices per TP line segment depend on?

KNX BasicLearnSystem OverviewMedium
Answer

B — The total power consumption of the devices

Correct: The maximum number of devices per segment depends on their total power consumption.

Source

KNX Basic Course Documentation — 12.4 — p. 55

All proposed choices (exam context)
  1. A.Always exactly 64 devices, regardless of consumption
  2. B.The total power consumption of the devices
  3. C.The total cable length only
  4. D.The number of power supply units only
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Last updated: 19 May 2026

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