我国采用以下哪种映射复用路径将2048Kbps信号复用成SDH信号?()
- A2Mbps→C12→VC12→TU12→TUG2→VC3→AU3→AUG→STM-N
- B2Mbps→C12→VC12→TU12→TUG2→TUG3→AU3→AUG→STM-N
- C2Mbps→C12→VC12→TU12→TUG2→TUG3→VC4→STM-N
- D2Mbps→C12→VC12→TU12→TUG2→TUG3→VC4→AU4→AUG→STM-N
- E2Mbps→C11→VC11→TU11→TUG2→TUG3→VC4→AU4→AUG→STM-N