Which of the following access network products can provide ADSL access methods?

• A.MA5600
• B.MA5300
• C.UA5000
• D.MA5100

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MA5600T/MA5680T GE/FE optical interface board H802OPGD provides Ethernet optical access function .
How many GE/FE P2P accesses can be supported at most?

• A.32
• B.48
• C.16
• D.8

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When testing the average transmit optical power of an optical interface, which of the following descriptions are incorrect?

• A.The optical fiber connector and the optical connector on the optical interface board panel are clean and well connected
• B.Connect one end of the test pigtail of the optical power meter to the "Rx" port of the optical interface board, and connect the other end of the pigtail to the optical power meter.
• C.The optical power meter is calibrated
• D.Repeat several times to check whether the maximum and minimum measured average transmit optical power meet the technical requirements.

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Which of the following does not belong to the category of communication networks?

• A.State Grid
• B.Radio and Television Network
• C.Internet The internet
• D.Telephone network

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Use an optical power meter to measure the optical power on both sides of the optical fiber connector, calculate the attenuation of the optical fiber connector, and find that the attenuation is greater than the theoretical value, what is the possible reason? (Multiple choice)

• A.Multimode fiber is used.
• B.The fiber optic connector is too tight or too loose.
• C.There are different types of fiber optic connectors.
• D.The beam splitter is faulty or the beam splitter is dirty
• E.The end face of the optical fiber connector is dirty, scratched and dented.

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