In long-distance transmission, the usual scheme selection order is BA->BA+PA->Backward Raman->Front Backward Raman

• A.BA+PA->BA->Pull backward
  Man -> Forward + Backward Raman
• B.BA->BA+PA->forward +
  Backward Raman -> Backward Raman
• C.BA->Backward Raman-
• D.>BA+PA->forward+backward Raman

Comment: *

Name: *

Email: *

Verification: *

How many wavelengths does Huawei currently support DWDM?

• A.96
• B.80
• C.160
• D.40

Comment: *

Name: *

Email: *

Verification: *

"IP+Optical" fusion solutions, what are the main component products?

• A.OLT
• B.ODN
• C.ONU
• D.ONT

Comment: *

Name: *

Email: *

Verification: *