Transcript www.scr.indianrailways.gov.in
SDH Framing Structure SDH Framing Structure Overhead (PDH) 2 Mbit/s TU-12 VC-12 C-12 TUG-2 P O TUG-2 TUG-2 TU-12 Pointer (PTR) Stuff TU-12 TUG-2 TUG-3 TUG-2 RSOH AU Pointer H MSOH VC-4 TUG-3 STM-1 VC-4 AU-4 TUG-3 TUG-2 TUG-2