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