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Which port should the router s fiber optic cable be connected to

The fiber optic cable should connect to the Optical Network Terminal (ONT) first, and then the ONT connects to your router's WAN or Internet port.

Step-by-Step Connection

1. Fiber Cable to ONT Fiber optic cables cannot plug directly into a standard home router because the signal is optical, not electrical. The fiber line terminates at an Optical Network Terminal (ONT), usually provided by your ISP. The ONT converts the light signal from the fiber into an electrical signal that your router can understand. Insert the fiber cable into the ONT's port labeled “Fiber” or “GPON,” ensuring the connector is clean and properly aligned to avoid signal loss . 2. ONT to Router Once the ONT is powered on and stabilized, use an Ethernet cable (Cat5e or higher) to connect the ONT's Ethernet or LAN port to your router's WAN or Internet port. This port is often color-coded or labeled differently from the LAN ports and is specifically designed to receive the external internet feed . 3. Power and Configuration

  • Power on the ONT first, then the router.
  • Access the router's admin panel via a web browser (commonly 192.168.1.1 or 192.168.0.1) to configure any ISP credentials if required.
  • Check the status lights on both the ONT and router; a steady light indicates a successful connection .

Key Points

  • Do not connect the fiber cable directly to a standard router; it must go through the ONT.
  • The WAN/Internet port on the router is the correct port for receiving the converted signal from the ONT.
  • Ensure all connections are secure and the equipment is placed near power outlets in a dry, ventilated area . Following this setup ensures your fiber optic internet connection is properly established and ready for use.

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