In case of faulty ONT, user can replace the ONT without deleting existing connections or services associated with that ONT using Update ONT option. On performing this operation, physical state of faulty ONT will be deactivated and DG indication alarm will be generated for the services on the PON port to which connected ONT goes down.
Perform the following steps for changing serial number of ONT:
Selected ONT will be updated with the new serial number without deletion of the existing services.