Hello,friend!
You need to register the ONT with the OLT and enable the automatic discovery function on the OLT through NCE.
1. Open the Network Management app and choose Topology > View > Physical Topology from the main menu. On the Physical Topology tab page, press Ctrl+F. Enter an NE name or IP address. In the dialog box that is displayed, click the blue link in the Name column of the row that contains the target NE.
2. Operations area, click NE Explorer.
3. Choose GPON > GPON Management from the navigation tree.
4. On the ONU Details tab page, click.
5. In the dialog box that is displayed, set the querying criteria, or click to display the required GPON ONUs.
6. In the GPON ONU list, select a record and click OK.
Thanks!