Question
Why does line coupler LC 2 route the sensor's group telegram 0/2/11 onto the main line?
Answer
C — Its parameterisation (filter table) shows that devices outside line 2 respond to that group address.
Correct: LC 2 forwards 0/2/11 because its filter table shows external devices need it.
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An error or unclear wording? Report this questionAll proposed choices (exam context)
- A.A line coupler forwards every telegram it receives to the main line.
- B.Because the routing counter had already reached 0.
- C.Its parameterisation (filter table) shows that devices outside line 2 respond to that group address.✓
- D.Because only line repeaters, not couplers, can forward telegrams.
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