| Where
is pointer processing needed? |
|
|
| Pointer
processing is needed when different SDH |
|
| network nodes have
slightly different clock rates |
|
|
|
| ATM |
|
| switch |
|
| ATM |
| ATM |
| SDH |
| SDH |
| SDH |
| SDH |
| CC |
| CC |
|
|
| Mux/demux |
|
| SDH node |
|
|
|
| Packing of |
|
| VC-4 container |
|
|
|
| VC-4 container
passes transparently through |
|
| SDH cross-connect (CC)
equipment |
|