A.K1與K2 B.E1與E2 C.B1與B2 D.J0與J1
A.GE02與FE08都是以太網(wǎng)業(yè)務(wù)透傳單板 B.EPS中,10板位的SP08能夠保護11板位的SP08 C.實際應(yīng)用中,不允許EXCS與AXCS作1+1熱備份 D.主備交叉板由于各自有其獨立的總線以及微動開關(guān),主備交叉板倒換非常可靠
A.矩形塊狀;條形 B.矩形塊狀;矩形塊狀 C.條形;矩形塊狀
A.2Mbps→C12→VC12→TU12→TUG2→VC3→AU3→AUG→STM-N B.2Mbps→C12→VC12→TU12→TUG2→TUG3→AU3→AUG→STM-N C.2Mbps→C12→VC12→TU12→TUG2→TUG3→VC4→STM-N D.2Mbps→C12→VC12→TU12→TUG2→TUG3→VC4→AU4→AUG→STM-N E.2Mbps→C11→VC11→TU11→TUG2→TUG3→VC4→AU4→AUG→STM-N
A.1812 B.1813 C.179 D.17