When copper reaches its limit, this media converter extends the link across single-mode fiber with the distance headroom enterprise networks expect. The INTELLINET 545068 converts 10/100/1000BASE-TX to 1000BASE-LX over an SC interface and supports runs up to 20 km. That makes it a strong fit for campus backbones, building-to-building connections, and remote network segments where pulling new copper is not practical. WDM support helps reduce fiber complexity in deployments that use paired wavelengths for transmit and receive paths. The result is a cleaner long-distance design with fewer moving parts at the edge. For teams comparing media converters, the value here is not just speed; it is the ability to preserve Gigabit throughput while meeting the physical realities of long-haul fiber transport. This model is aimed at infrastructure teams that need a dependable copper-to-fiber transition point rather than a generic adapter. With single-mode fiber support, SC connectivity, and a 20 km reach, it is positioned for serious network extension work where link quality and distance matter more than price alone.