Hello there, Community friends!
This post talks about the laser restart process. Please have a look below for more details on the topic in question.
BACKGROUND INFORMATION
When the IPA function is configured in automatic restart mode
The system automatically restores the optical power of the transmitted signals at point T2 to a value smaller than 10 dBm at intervals of 100s to 300s.
If the fiber is restored in the period when the optical power at point T2 is lower than 10 dBm, the system clears the R_LOS alarm at point R1. When this occurs, the system also restores the optical power of the transmitted signals at point T1 to a value smaller than 10 dBm and clears the R_LOS alarm at point R2. In this case, the entire system restores normal service transmission and restores the optical power of the transmitted signals to a value in the normal range.
If the fiber is not restored in the period when the optical power at point T2 is smaller than 10 dBm, the R_LOS alarm at point R2 persists. In this case, the system decreases the optical power at point T2 to a safe range again and triggers another automatic restart process.
When the IPA function is configured in OSC restart mode under the condition that the OSC board is set as an auxiliary detection board and the pulse restart mode is disabled
If the system receives a message indicating the end of the R_LOS alarm after the laser on the control implementation board has been in a shutdown state for 100 or more seconds, the system directly starts the laser and stops the IPA function.
You can manually trigger the restart process (manual restart or test restart) by running commands to start the laser at point T2 or T1. The manual restart and test restart are available only when the signals transmitted from point T2 or T1 are decreasing.
That's all, I hope you like it.
Thank you!
