Dear Specialists,
My customer is encountering the problem the same as URL listed below.

He has some questions.
Could you please advise?
---questions
(1) I'd like to know why RD signal is reflected to TD at power off.
(2) It was mentioned CMC is improve the reflection.
Why a CMC is effective?
(3)I would like to compare data added with CMC and not added.
Could you please provide?
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The customer need to explain the end customer.
I appreciate your great help in advance.
Best regards,
Shinichi