When creating an OCh trail by using the board method, the source/sink ports select the corresponding line board and the IN/OUT port of the FIU board.
The shortcomings of traditional OTDR meters in measuring optical fibers are: (Multiple choice)
Which step is more when the the single board replacement operation of main control board single configuration than main control board double configuration?
The collection and storage of on-site data includes periodic collection during normal operation of the equipment and collection of equipment failures. Generally, before the fault is processed, the maintenance personnel must collect and save the field data.
In the ROADM, which of the following layer of OTN paths do not need to be manually configured, it can be obtained directly by path search? (Multiple Choice)
