Do You know Huawei OTN Line Board NQ2 has some restrictions on the line mode?

For Huawei OptiX OSN 6800:

If the TN12XCS board is used, TN52NQ2 or TN53NQ2 board supports a service capacity of 40 Gbit/s when it is installed in slot 1, 4, 11, or 14; only optical ports IN1/OUT1 and IN2/OUT2 of the NQ2 board are available and therefore the board supports a service capacity of 20 Gbit/s when it is installed in any of the other slots.
If the TN11XCS board is used, only optical ports IN1/OUT1 and IN2/OUT2 of the NQ2 board are available and therefore the board supports a service capacity of 20 Gbit/s regardless of which slot the board is installed.

For Huawei OptiX OSN 8800: The NQ2 board supports a maximum service capacity of 40 Gbit/s in any slot.