Move Fast Ethernet traffic across single-mode fiber with a converter built for practical long-distance connectivity. The Intellinet 510547 bridges 10/100BASE-TX copper to 100BASE-FX fiber using WDM operation and SC connectivity, making it a focused choice for remote links that need to stay simple and predictable. With support for up to 20 km, this model is suited to campus runs, building interconnects, and remote device links where copper alone is not enough. WDM reduces fiber complexity by allowing bi-directional transport over a streamlined optical path, which helps when you are extending service without overbuilding the network. For teams managing edge infrastructure, the value is in the specificity: Fast Ethernet conversion, single-mode reach, and a connector standard that integrates cleanly into established fiber environments. It is a practical tool for extending legacy or purpose-built 10/100 networks where the cost of replacing the full access layer is not justified.