Which of the following is not a condition that triggers multiplexed segment protection (MSP)?

• A.MS-AIS signal was detected.
• B.R-LOS detected.
• C.Au-AIS detected.
• D.Check to R-LOF.

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Both PDH and SDH have globally harmonized standards.

• A.False
• B.True

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Some SNCP protection inversion conditions are default, such as AU-AIS and TU-AIS. Other conditions are optional, such as HP-TIM and HP-SLM. Optional conditions can be flexibly set according to the level of the costume.

• A.Error
• B.True

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PRBS can be used to test that the SDH service is healthy and that the protection reversal function is working.

• A.Error
• B.True

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The index is used to folio and delineate the starting position of VC-n in the corresponding AU or TU frame so that the receiving end can correctly remove the corresponding VC from the STM-N The VC and C packages are then separated into separate low-rate signals, such as PDH That is; Low-rate branch signals can be discarded directly from the STM-N signal

• A.True
• B.Error

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