單項選擇題

40G速率OTN系統(tǒng)PMD容限是()(AFEC+P-DPSK)

A.1dB 代價 7psDGD/2ps PMD
B.1dB 代價 6psDGD/2ps PMD
C.1dB 代價 7.5psDGD/2.5ps PMD
D.1.5dB 代價 8.5psDGD/2.5ps PMD

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