OPU frame generating device and OPU frame test device

摘要

An OPU frame generating device includes a frequency setting unit that sets a frequency corresponding to a bit rate of data which can be stored in a payload area, a parameter calculating unit that calculates a parameter Cm indicating an integer part of the amount of data included in the payload area using the set frequency, a data inserting unit that outputs a timing signal determined by the parameter Cm and inserts data at a position determined by the parameter Cm in the payload area, a data generating unit that generates data in synchronization with the timing signal, and a frame generating unit that generates an OPU frame having the payload area into which the data is inserted.

主权项

1. An Optical channel Payload Unit (OPU) frame device comprising:
a frame generating unit that generates an OPU frame having a payload area; a second oscillating unit that generates a second clock signal for driving the frame generating unit; a frequency setting unit that sets an arbitrary frequency corresponding to a bit rate of data which can be stored in the payload area; a parameter calculating unit that calculates a parameter Cm indicating an integer part of an amount of data included in the payload area using the arbitrary frequency set by the frequency setting unit; a data inserting unit that outputs a timing signal determined by the parameter Cm calculated by the parameter calculating unit and inserts data at a position determined by the parameter Cm in the payload area; and a data generating unit that generates data in synchronization with the timing signal and outputs the generated data to the data inserting unit, wherein the frame generating unit generates the OPU frame having the payload area into which the data has been inserted by the data inserting unit, the second clock signal drives the parameter calculating unit and the data inserting unit, in addition to the frame generating unit, the frequency setting unit sets an arbitrary frequency range corresponding to the bit rate of the data which can be stored in the payload area and sequentially changes the arbitrary frequency in the set arbitrary frequency range, the parameter calculating unit sequentially calculates the parameter Cm using the frequency which is sequentially changed, the data inserting unit acquires the parameter Cm which is sequentially calculated from the parameter calculating unit, sequentially generates the timing signal using the parameter Cm which is sequentially calculated and inserts the generated data with a common frequency from the data generating unit at a position determined by the acquired parameter Cm in the payload area, and the data generating unit sequentially generates data in synchronization with the timing signal which is sequentially changed.