SONET/SDH
SONET (Synchronous Optical Network)
An optical transmission interface originally proposed by Bell Core and standardized by ANSI.
SDH (Synchronous Digital Hierarchy)
A system compatible to SONET and standardized by CCITT (G.707-709)
LAYERS:
LINE RATES:
|
SONET |
CCITT |
Line Rate (Mbps) |
|
STS - 1 |
51.84 |
|
STS - 3 |
STM-1 |
155.52 |
|
STS - 9 |
STM-3 |
466.56 |
|
STS - 12 |
STM-4 |
622.08 |
|
STS - 48 |
STS-16 |
2488.32 |
