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2                                                 Transport aspects





























                   Figure 17-18  OPUflex frame structure for the mapping of a supra-2.488 Gbit/s client signal


                                           Table 17-14 – supra-2.488G CBR clients

                       Client signal              Nominal bit rate (kbit/s)        Bit-rate tolerance (ppm)

             FC-400                                      4 250 000                         100
             FC-800                                      8 500 000                         100
             FC-1600                                    14 025 000                         100
             FC-3200                                    28 050 000                         100
             IB SDR                                      2 500 000                         100
             IB DDR                                      5 000 000                         100

             IB QDR                                     10 000 000                         100
             3G SDI                                      2 970 000                          10
             3G SDI                                   2 970 000/1.001                      10



                                Table 17-15 – Replacement signal for supra-2.488 Gbit/s clients

                       Client signal                Replacement signal             Bit-rate tolerance (ppm)
             FC-400                                        NOS                             100

             FC-800                                        NOS                             100
             FC-1600                                       NOS                             100
             FC-3200                                       NOS                             100
             IB SDR                                   For further study                    100
             IB DDR                                   For further study                    100
             IB QDR                                   For further study                    100

             3G SDI                                     Generic-AIS                   For further study








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