A and C are WDM OTM sites, and B is a regeneration site. If the ODU2_LCK signal is inserted at site A, which of the following statements are correct?
In the scenario where the non-convergence OTU processes OTN standard signals, both A and B are WDM sites. The OTU at station A accesses four channels of R_LOS signals on the client side. After being processed in the middle part and on the WDM side of the OTU at station A, the alarm signals are then sent to station B. The ODUk_PM_AIS alarm of the corresponding channel is generated in the middle part of station B. The ODUk_PM_AIS alarm is detected in the client device.
Which of the following methods can be used to analyze faults in the NG WDM system?
When many alarms are reported at the same time, the alarm handling priority is as follows: Handle alarms according to the priorities of equipment alarms (such as BUS_ERR, HARD_ERR, and COMM_FAIL), optical-layer LOS, electrical-layer OTUk_LOF, ODUk_SSF, and protection switching.
The OD system monitors the main optical path performance in each optical multiplexing section (OMS), which of the following items are monitored?
Which of the following statements about the line fiber quality monitoring performance parameters is wrong?
