Fiber optic cables can run up to 80 km without a repeater. For most enterprise or data center applications using multimode fiber, the practical limit sits between 300 m and 550 m. 652,” which is commonly used in telecommunications networks. How far is the multimode fiber distance? Multimode Fiber Optical Transmission Unlike single-mode fiber optics (MMF). Network cables transmit data via electrical signals (Ethernet, coaxial) or light pulses (fiber optic). In all cases, the medium (copper wires or glass fibers) introduces signal degradation over distance. Low latency makes the video pop up fast than employing copper cable. The fiber optic cable also will not pick up the surge in the environment and lead back to the IP. But there is sometimes some confusion over how far a fibre optic cable can be run, the table below should help to answer this question.