The PTN3900 device needs to complete the access and processing of E1 signals through the processing board, service daughter card, and interface board. Which of the following boards is not involved in the work?

• A.MP1
• B.CD1
• C.D12/D75
• D.MQ1

Comment: *

Name: *

Email: *

Verification: *

In the NG-WDM system, which one of the following boards supports optical line protection?

• A.QCP
• B.OTU
• C.OLP
• D.DCP

Comment: *

Name: *

Email: *

Verification: *

The 1510 nm optical monitoring channel can be effectively amplified after passing through the EDFA.

• A.False
• B.True

Comment: *

Name: *

Email: *

Verification: *