Under one PON port, only one ONU cannot go online, while other ONUs can go online normally. In this case. Which of the following failures is possible?

The correct answer is D. ONU branch fiber failure. See the full explanation below for the reasoning.

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Question

Options

AOPON port failure
BTrunk fiber failure
CPON board failure
DONU branch fiber failure

How the community answered

(70 responses)

A
3% (2)
B
4% (3)
C
9% (6)
D
84% (59)

Topics

#ONU fault isolation#branch fiber failure#PON troubleshooting#fault diagnosis

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