Check the diagnostic information, which shows that the received optical power is low, with a threshold of -3 to -23. Troubleshoot the link, and if the link is normal, replace the optical. You can set optical power alarm so that the device generates alarms if the transmit or receive power of an optical module exceeds a threshold. SRM/3/OPTPWRABNORMAL: OID Optical module power is abnormal. (EntityPhysicalIndex=, BaseTrapSeverity=, BaseTrapProbableCause=, BaseTrapEventType=, EntPhysicalContainedIn=, EntPhysicalName=" ", RelativeResource=" ". oltage and the bias current. If one of the five parameters is abnormal, ONU registration will be abnormal or packet nt are all for the PON port. The parameters of optical module include the light transmission power, the light reception power, the temperature, the power-supply voltage and the bias current.
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