Which should be connected first the fiber optic cable or the router

The fiber optic cable should first be connected to an Optical Network Terminal (ONT), which then connects to your router via an Ethernet cable.

Step-by-Step Connection Sequence

1. Install the ONT The ONT is a device provided by your ISP that converts the light signals from the fiber optic cable into electrical signals your router can use . Place the ONT near the fiber entry point in your home to minimize signal loss.
2. Connect the Fiber Optic Cable to the ONT Plug the fiber optic cable into the designated port on the ONT. Ensure the connection is secure, as improper seating can degrade signal quality significantly .
3. Link the ONT to the Router Use a high-quality Ethernet cable (Cat6 or higher) to connect the ONT's Ethernet port to the WAN or fiber port on your router . This step allows your router to distribute the internet signal to your devices.
4. Power On Devices First, power on the ONT and wait for its status lights to stabilize. Then, power on the router and confirm that it receives a signal from the ONT . This sequence ensures proper initialization and avoids connectivity issues.

Additional Considerations

• Fiber-Ready Router: Ensure your router supports fiber input, either via a dedicated SFP port or a WAN port compatible with the ONT .
• Combo Units: Some ISPs provide a single device that functions as both ONT and router. In this case, the fiber cable connects directly to the combo unit .
• Performance Optimization: Use high-quality Ethernet cables and configure router settings such as Quality of Service (QoS) for optimal performance, especially for streaming or gaming . By following this sequence—fiber optic cable to ONT first, then ONT to router—you ensure a stable, high-speed fiber internet connection with minimal signal loss.