Question 36
In ITU-T G.692 recommendations, the allowed channel frequency is based on the reference frequency ( ) and the channel spacing can be 100 GHz, 50 GHz, or 25 GHz.
Question 37
Which of the following are the differences between AU pointer and TU pointer? (Multiple Choice)
Question 38
The management scope of an OMSn is the path from the input optical port on a multiplexer unit at the transmit site to the output optical port on a demultiplexer unit at the receive site, which is called an optical multiplexing section (OMS) path.
Question 39
For an OSN 3500, which of the following boards provides the centralized backup function for the +3.3 V power supply of each board in the subrack?
Question 40
Optical supervisory channels are intended for the supervisory of WDM optical transmission systems. In ITU-T recommendations, 1510 nm wavelengths at a ( ) rate are preferentially used.