Question
What does a line coupler do with the data communication between the main line and its secondary line?
Answer
B — It monitors the communication both ways and routes only telegrams whose group addresses are in its filter table.
Correct: the line coupler monitors data communication between the main line and the secondary line and vice versa, routing only telegrams whose group addresses are stored in its filter table.
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An error or unclear wording? Report this questionAll proposed choices (exam context)
- A.It forwards all telegrams in both directions.
- B.It monitors the communication both ways and routes only telegrams whose group addresses are in its filter table.✓
- C.It blocks all traffic between the two lines.
- D.It converts individual addresses into group addresses.
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