Move copper Ethernet onto single-mode fiber without changing the network design around it. The Intellinet 507349 converts 10/100/1000BASE-T to 1000BASE-LX over SC optics and supports links up to 20 km, making it a strong fit for campus backbones, remote closets, and building interconnects. This model is built for teams that need dependable reach more than generic port expansion. By translating Gigabit copper to long-distance fiber, it helps preserve switch capacity, reduce the need for additional active networking gear, and keep endpoint placement flexible across larger facilities. The single-mode design is especially useful where distance, interference, or pathway constraints make copper impractical. For infrastructure groups standardizing on fiber uplinks, the 507349 offers a straightforward way to extend service while keeping the conversion layer simple and predictable.