Yes, a GPON connection can be made with the Keenetic SFP port, but it requires a compatible GPON SFP module. Since Huawei ONT and OLT systems are used in your area, ensure the SFP module supports Huawei's SN-based verification. Keenetic currently doesn't offer a product with a 10G SFP port. If you connect a 10G SFP to a Keenetic 1G SFP port, the connection will not be established, as the speeds must match. Cisco does support SFP and SFP+ modules for various speeds, including 1G and 10G.
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