Question 51
From the following barcode 02846710HC000085 Y1 LPS-FRM800-PIU, it can be seen that the production date of this board is December 2017.
Question 52
Which of the following is not the advantage of WDM?
Question 53
Which of the following is the unit that converts non-standard wavelengths to standard wavelengths specified by ITU-T?
Question 54
The optical monitoring channel is established for monitoring the WDM optical transmission system.
ITU-T recommends using a wavelength of 1510nm and a capacity of 2MHz/s.
ITU-T recommends using a wavelength of 1510nm and a capacity of 2MHz/s.
Question 55
The backplane has two 48V power cords, and each board gets two -48V power supplies from the backplane.
After combining the power supply via diodes, the various voltages required for each component are obtained by means of a DC/DC power module and a linear mane swap.
After combining the power supply via diodes, the various voltages required for each component are obtained by means of a DC/DC power module and a linear mane swap.