NE A and NE B are adjacent NE
If B3 and low-order Falses occur in the A->B direction, and B1, B2, B3, and low-order Falses occur in the B->A direction, it is caused by Which of the following performance events does NEA report? (Multiple choice).
In the case of a 1+1 linear MSP, which of the following switching modes does not require the APS protection protocol full (multiple choice) to be enabled
The difference between dispersion compensation fibers and ordinary optical fibers is that the dispersion compensation fibers have a negative dispersion coefficient at ().
Fiber loss includes bending loss, absorption loss and scattering loss.