Methods for checking the difference between the receive optical powers of the working and protection channels on the DCP board

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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.

Other related questions:
Optical power difference between the working and protection trails on the DCP board to trigger protection switching
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.

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.

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.

Difference between the per-channel average receive optical power (Min) and per-channel receive sensitivity (OMA) of the TN54TSXL board
The per-channel receive sensitivity (OMA) indicates the standard-defined optical power range, including the sensitivity and overload point. It is not used for project commissioning. In practical project commissioning, the per-channel average optical power and total average optical power are used. It is advised that only the total average optical power is used.

Whether LOG boards can work with OLP boards to form protection between different channels
Yes. LOG boards can work with OLP boards to form extended intra-board 1+1 protection or client 1+1 protection.

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