For WDM networks, which of the following description is correct? (Multiple choice)
A . For 10G and 100G mixed transmission networks, the dispersion compensation of the 100G performance analysis system can be used
B . For OAU boards, you can roughly determine the type of DCM module connected to the site according to the nominal upper gain threshold (dB) on the network management minus the actual upper gain threshold (dB).
C . For OAU boards, you can roughly determine the type of DGI module connected to the site according to the difference between the output of POUT and the input of BAI
E . For 10G and 100G mixed transmission networks, the dispersion compensation of the 10G performance analysis system can be used
Answer: AB