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  • About the feasibility of ODTU1.ts

    From Michelot@21:1/5 to All on Sun Mar 20 10:56:26 2016
    Bonsoir Huub,

    In G.709 (02/2012), page 223, we can read:

    "The nominal values for ODUk.ts are chosen to be 186 ppm below the bandwidth of a single 1.25G tributary slot of a higher order OPUk".

    As it is said in the section 19.1.3, the OPU1 payload can be divided in two 1.25G tributary slots.

    So, a TS in OPU1 is 2,488 320 / 2 = 1,244 160 Gbit/s.

    With the space of 186 ppm, we should have ODTU1.ts with an approximatively value of 1,243 928 Gbit/s.

    Do you know why we don't have ODTU1.ts in the table 7-8?

    Many thanks,
    Michelot

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  • From Huub van Helvoort@21:1/5 to All on Sun Apr 3 20:18:53 2016
    Bonsoir Michelot,

    You wonder:

    Do you know why we don't have ODTU1.ts in the table 7-8?

    Because there was never a contribution from a manufacturer
    and/or operator for this signal.

    I think for the following reason:

    An ODUflex with 1 or 2 timeslots is not necessary because ODU0
    and ODU1 are available.

    Best regards, Huub.


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