In most cases, yes, you can use your existing router with fiber optic internet, provided it has a WAN (Wide Area Network) Ethernet port and your ISP provides a modem/ONT with an Ethernet output. This guide dives deep into the maximum length constraints of the three most common network cables—Ethernet, coaxial, and fiber optic—explaining why these limits exist, how they vary by cable type, and how to extend them when needed. This guide covers fiber distance limitations, influencing factors, application-based selection, and technologies that extend optical. Lower-count fiber cables come with 2, 4, 6, or 12 fibers, and higher-count cables come with 24 or more fibers, usually in multiples of 12 (e. Custom fiber strand counts are also available, but typically require a large minimum quantity and longer lead times. Attenuation is the progressive loss of signal strength that occurs as light travels through the fiber. It uses a narrow core and lets light move in one straight path.
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