Free Huawei H31-341_V2.5 Exam Questions

Which of the following alarms will trigger optical line protection switching?

In the scenario of non-convergent OUT processing SDH standard signals, both A and B are WDM stations, and A station OTU The R_LOS alarm is detected on the client side of OUT, and after processing the alarm on the WDM side of OUT, in the downstream B The client side of the station detects and reports the REM_SF alarm, and station B transmits the signal to its downstream client equipment, and Report the R_LOS alarm to the client device. 

For a 10G OUT board, the receiver optical module uses a PIN module, then the following Which receiving power is in the normal receiving range of the board?

Which of the following are not features of WDM network expansion?

Fill in Blank The decrease of optical power when light passes through a passive optical component is called the____. (Enter only letters.)