Question

What does a coupler's filter table contain?

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Answer

D — The active line-crossing group addresses (linked to devices on both sides of the coupler).

Correct: the filter table contains the active line-crossing group addresses, i.e. all group addresses linked to bus devices on both sides of the coupler.

All proposed choices (exam context)
  1. A.The individual addresses of all devices on the secondary line.
  2. B.Every group address used anywhere in the installation.
  3. C.The routing counter values for each telegram.
  4. D.The active line-crossing group addresses (linked to devices on both sides of the coupler).✓
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