Question
When a sensor's application module and bus coupling unit are physically separated (mainly with flush-mounted sensors), how are they connected?
Answer
B — Through a standardized or manufacturer-specific Physical External Interface (PEI)
Correct: The text says the application module can be connected to the BCU via a standardized or manufacturer-specific PEI.
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An error or unclear wording? Report this questionAll proposed choices (exam context)
- A.Only through the standardized KNX bus connector
- B.Through a standardized or manufacturer-specific Physical External Interface (PEI)✓
- C.Wirelessly via KNX-RF
- D.By soldering the application program onto the BCU
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