單項(xiàng)選擇題在開(kāi)放式波分復(fù)用系統(tǒng)中,針對(duì)2.5G業(yè)務(wù),光轉(zhuǎn)發(fā)板OTU用于將SDH設(shè)備送來(lái)的符合()規(guī)范光信號(hào)進(jìn)行O/E/O/轉(zhuǎn)換

A.G·957
B.G·692
C.IEEE802·3Z
D.G·691


您可能感興趣的試卷