In the  EPON  system, the port that the  ONU  device connects to the user is

GB0-391-ENU 0 Comments

In the  EPON  system, the port that the  ONU  device connects to the user is
A . OLT
B . ONU
C . NNI
D . UNI

Answer:   D

Explanation:

Network side interface  NNI  , user side interface  UNI

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