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Seminar - An Overview of Communications Technologies


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Module 5 - SONET, WDM, DWDM and B-ISDN Technologies                                                             Slide 38 of 76 _________________                                                                                  __________

                                               SONET Line Rates

          

VTOH - Virtual Tributaries Over Head

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Virtual Tributaries are mapped into the STS-1 line rate. Optical transmission line rates are specified from 51.84 M bps to 9.953 G bps. The SDH line rates start at OC-3 level.