Question
Which information does the control field of the first data block carry?
Answer
C — Telegram length, device type (uni-/bidirectional), transmission quality (signal strength) and battery status
Correct: the control field holds the telegram length, the device type, the transmission quality and the battery status of battery-operated devices.
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An error or unclear wording? Report this questionAll proposed choices (exam context)
- A.Only the CRC used for error detection
- B.The switching or dimming command to be executed
- C.Telegram length, device type (uni-/bidirectional), transmission quality (signal strength) and battery status✓
- D.The group address assigned by ETS
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