Question
How are the bus coupling unit and application module usually arranged in a DIN rail-mounted KNX device?
Answer
A — Inseparably connected together in one housing
Correct: The text states DIN rail-mounted devices usually integrate the BCU and AM inseparably in one housing.
Source
KNX Basic Course Documentation — 1.1 — p. 124
All proposed choices (exam context)
- A.Inseparably connected together in one housing✓
- B.Always separated and joined through an external PEI
- C.As two DIN modules from different manufacturers
- D.Connected only by the KNX bus cable
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