Yes, you can use your own router with fiber internet, as long as it has a Gigabit Ethernet WAN port to connect to your ISP's Optical Network Terminal. Upgrading to a Wi-Fi 6 or 6E router helps you get the full benefit of symmetrical fiber speeds. TP-Link router speed isn't one single number. Signal rate, link speed, and actual internet speed are distinct, and understanding the differences matters when troubleshooting or evaluating your connection. This guide comprehensively answers that, exploring the technicalities, benefits, and practical steps involved in using your existing router with a new fiber connection, ensuring you make an informed decision. I'm Fazlay Rabby — the founder and writer behind Thewearify.
[pdf] This guide provides a practical, standards-based approach to selecting managed industrial Ethernet switches and designing robust OT networks. Industrial fiber optic Ethernet switches are designed to deliver stable, long-distance, and interference-resistant network connectivity in harsh industrial environments where copper Ethernet is limited by distance or electromagnetic noise. Unmanaged switches are the simplest active network. To overcome the barriers caused by different protocols, the International Electrotechnical Commission (IEC) developed IEC 61850, which provides a standard communication protocol for electrical substations and power grid automation.
[pdf] 
