Question
Why may bus devices only be installed up to 350 m from the choke (power supply unit)?
Answer
D — Because the choke plays a significant role in forming the equalization pulse
Correct: The choke helps form the positive equalization pulse, so devices must stay within 350 m of it.
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An error or unclear wording? Report this questionAll proposed choices (exam context)
- A.Because beyond 350 m the 30 V DC supply drops to zero
- B.Because collisions cannot be resolved beyond 350 m
- C.Because ETS cannot address devices further than 350 m away
- D.Because the choke plays a significant role in forming the equalization pulse✓
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