Optical power difference between the working and protection trails on the DCP board to trigger protection switching

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When the optical power difference between the working and protection trails exceeds a specified threshold, a POWER_DIFF_OVER alarm is reported and this alarm will trigger OLP protection switching. This threshold is configurable, and the default value is 5 dB.

Other related questions:
Threshold of the optical power difference to trigger the switching between the working and protection channels of the DCP board on OSN 6800 devices
The default threshold of the optical power difference to trigger the switching between the working and protection channels of the DCP board on OSN 6800 devices is 5 dB.

Methods for checking the difference between the receive optical powers of the working and protection channels on the DCP board
In the NE Explorer > DCP Configuration > WDM Interface to check the current receive optical power on the working and protection channels of the DCP board to confirm the difference.

Method used to specify the working and protection trails of an intra-board 1+1 protection group on DCP boards
Select ports 1(RI11/TO11) and 2(RI12/TO12) of the DCP boards as the working and protection trails respectively. Alternatively, select ports 3(RI21/TO21) and 4(RI22/TO22) of the DCP boards as the working and protection trails respectively.

Typical threshold of working and protection channel switching difference of the DCP board on OSN 6800 devices
The typical threshold of working and protection channel switching difference of the DCP board on OSN 6800 devices is 5 dB.

Protection implemented by TOM and DCP boards
Intra-board 1+1 protection can be implemented when the TOM board works with the DCP board.

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