How to connect a gigabit fiber optic port to a router

Plug your fiber connection into the router's WAN port or SFP port, typically via an ONT or compatible SFP module.Using an Optical Network Terminal (ONT)Most residential fiber setups require an ONT, which converts the incoming optical signal into an electrical Ethernet signal. The fiber optic cable from your ISP connects directly to the ONT's optical port. After conversion, the ONT outputs data through an Ethernet port, which should then be connected to your router's WAN port using a high-quality Ethernet cable (Cat6a or higher) to maintain gigabit speeds . Power on the ONT first, wait for the status lights to stabilize, and then connect your router.Using an SFP PortSome gigabit routers feature an SFP (Small Form-Factor Pluggable) port, which allows direct fiber connectivity via an SFP module. To use this:Insert a compatible SFP module into the router's SFP port. Ensure the module matches your fiber type (single-mode or multi-mode) and supports the required data rate (1 Gbps for gigabit fiber), .Connect the fiber optic cable to the SFP module, taking care not to bend or damage the cable and keeping connectors clean.Power on the router. No additional configuration is usually required for basic connectivity .Key ConsiderationsWAN vs SFP: If your router has both a WAN (RJ-45) port and an SFP port, you can use either depending on your setup. Use the WAN port if connecting via an ONT, or the SFP port if connecting directly with a fiber module .Cable quality: Use Cat6a or higher Ethernet cables between the ONT and router to preserve gigabit speeds .Power sequence: Always power on the ONT first, then the router, to ensure proper network registration .ISP compatibility: Check with your ISP for recommended SFP modules if using direct fiber connectivity, as some providers require specific models . By following these steps, your gigabit fiber optic router will be correctly connected, ensuring optimal speed and stable internet performance.