Optical wavelength sharing protection OWSP is used to configure the ring-type network of distributed services, and realizes the protection of all the distributed services between all sites by occupying two different wavelengths.

• A.FALSE
• B.TRUE

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For the OptiX OSN 8800 T16 subrack, the subrack ID is set by the DIP switch on the AUX board, and the subrack ID is displayed on the AUX board. The master and slave subracks are connected through the ETH1/ETH2 interfaces on the AUX board.

• A.FALSE
• B.TRUE

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PID (Photonics Integrated Device) is an optoelectronic integrated device, PID single board can realize multi-wavelength integration, 40Km without optical amplifier, 80Km without dispersion compensation ()

• A.TRUE
• B.FALSE

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In the SDH network, the S1 byte is used to transmit synchronization status information. Which of the following S1 byte values represents the G.811 recommended clock?

• A.0x0f
• B.0x04
• C.0x00
• D.0x0b
• E.0x02

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Which of the following descriptions of coherent technology is correct ()?

• A.Coherent technology eliminates CD/PMD through DSP
• B.The coherent technology increases the line rate to 100G while still maintaining the spectral bandwidth significantly less than 25GHz
• C.WDM to single wave 100G or higher rate evolution can choose coherent OUT or traditional non-coherent OTU
• D.Coherent receiving technology, OSNR tolerance theory can be improved by 2dB

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