OLP/DCP board alarms that can trigger intra-board 1+1 protection switching

OLP or DCP boards support the function of dual feeding and selective receiving. They can work with OTU or line boards that do not support this function to configure intra-board 1+1 protection. An R_LOS or POWER_DIFF_OVER alarm reported by an OLP or DCP board can trigger intra-board 1+1 protection switching.

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