In the end, it turned out SX3008F does NOT support ONT xgs-pon module. This is my current topology: Wall -> XGS_PON -> Telus AccessHub (ONT) -> Cat6 -> Cat6-to-SFP converter -> Ubiquiti...

My Telus 2.5G internet came with a Nokia SFP module, when I plug into my new SX3008F, nothing happens, light not up. Is it not compatible? Can I buy another module to use though?