A.具有TDM業(yè)務、ATM業(yè)務或以太網(wǎng)業(yè)務的接入功能 B.具有TDM業(yè)務、ATM業(yè)務或以太網(wǎng)業(yè)務的傳送功能 C.具有ATM業(yè)務或以太網(wǎng)業(yè)務的帶寬統(tǒng)計復用功能 D.具有ATM業(yè)務或以太網(wǎng)業(yè)務映射到SDH虛容器的指配功能
A.傳輸、復用、分插復用和交叉連接 B.傳輸、同步、交叉連接和網(wǎng)絡保護 C.傳輸、波分復用、交叉連接和網(wǎng)絡管理 D.網(wǎng)絡管理、映射、定位和復用
A.850nm,1310nm,1550nmB.8.5\mum,1.31\mum,1.55\mumC.850m,1310m,1550mD.850mm,1310mm,1550mm