Which of the following statements about optical multiplexer and demultiplexer boards is false?
Which of the following features is used by a laser to coherently receive optical signals and restore the amplitude, phase, and state of polarization information from the received signals?
The OA module inside an EMR8 board provides the____function. With this function, when one or more channels are added or dropped or optical signals of some channels fluctuate, the signal gain of other channels is not affected, (Enter only lowercase letters.)
Signal flow analysis is used to divide an entire network into several OMSs, identify the faulty section, determine whether the fault is occurring unidirectionally or bidirectionally, and then locate the fault along the signal flow direction based on fault information.
The OTUk_LOM alarm is generated when the out of multiframe (OOM) state lasts for 3 ms.
Select the correct on-demand OAM type based on the description for the blank area.
