In the WDM transmission system, the main factors that affect the unevenness of the power balance of each channel do not include the following?
According to the deployment plan of the existing network, which protocol does not need to be deployed for the interconnection between PTN equipment and SGW?
Standard FEC, AFEC and HFEC techniques all increase the FEC overhead, and the coding gains achieved are progressively increased.
Which of the following descriptions about single-site commissioning is wrong?
How many 2M service boards can OSN7500 support at most?
Which of the following logical function blocks is used for multiplexing section switching?
Which of the following is impossible for the cause of the ETH_LOS alarm?
During the troubleshooting process, if you need to loopback the protected services carried by the NG WDM device, which of the following operations need to be performed first when performing the loopback
operation?
Which of the following options are the basic requirements of DWDM system for light source
In the path hierarchy of the WDM network, which paths belong to the optical layer?