Difference between revisions of "SDH"
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m (New page: {{Under construction}} SDH og SONET er fiberoptiske OSI lag 1 transport teknologier. *SONET - Synchronous Optical NETwork *SDH - Synchronous Digital Hierachy *SDH Standardiseret af ITU *SO...) |
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Revision as of 09:00, 2 August 2009
Under ConstructionSDH og SONET er fiberoptiske OSI lag 1 transport teknologier.
- SONET - Synchronous Optical NETwork
- SDH - Synchronous Digital Hierachy
- SDH Standardiseret af ITU
- SONET anvendes i USA og Canada
- SDH i Resten af verden – Herunder DK
Hastighedsklasser
| Hierarki | SDH | Sonet | Hastighed |
|---|---|---|---|
| - | STM-0 | STS-1 | 51,840 Mbps |
| Level Zero | STM-1 | STS-3 | 155,520 Mbps |
| Level One | STM-4 | STS-12 | 622,080 Mbps |
| Level Two | STM-16 | STS-48 | 2.488,320 Mbps |
| Level Three | STM-64 | STS-192 | 9.953,280 Mbps |
| Level Four | STM-256 | STS-768 | 39.813,12 Mbps |
