Question 166
Which of the following unified line boards can support the crossover of VC, packet and ODUk at the same time?
Question 167
In a 40-wave system, using a DAP (TN150AC106) amplifier, the total input power is known to be -16 to 4dBm, and the typical gain is 16dB. What is the nominal single-wave output optical power?
Question 168
The levels of forced switching, fiber cut switching, manual switching, and practice switching are arranged from high to low.
Question 169
When the working channel of optical line protection fails, it cannot be automatically switched to the protection channel. Which of the following are the possible reasons? (Multiple choice)
Question 170
Both the extended ECC and the ECC physical layer use the DCC channel.