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Seminar - An Overview of Communications Technologies


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Module 5 - SONET, WDM, DWDM and B-ISDN Technologies                                                             Slide 23 of 76 _________________                                                                                  __________

                                    SONET Optical Transmission Rates

STS Level (Electronics) OC Level (Optical) Line Rates
STS-1 OC-1 51.840 M bps
STS-3 OC-3 155.520 M bps
STS-9 OC-9 466.560 M bps
STS-12 OC-12 622.080 M bps
STS-18 OC-18 933.120 M bps
STS-24 OC-24 1.244 G bps
STS-48 OC-48 2.488 G bps
STS-192 OC-192 9.953 G bps

                                                                                                   

The basic line rate for SONET is 51.84 M bps and is capable of transmitting at about 10 G bps on a single optical fiber.

Synchronous Transport Signal (STS) Level -  is an electronic signal level equivalent to Optical Communications (OC) signal level.