Keep copper and fiber networks aligned without replacing upstream switches. The Allied Telesis ATMMC2000LX/LC960 converts 10/100/1000T Ethernet to single-mode fiber through an LC interface, making it a practical fit for extending access, aggregation, or building-to-building links where distance and isolation matter. This model is aimed at environments that need dependable Gigabit transport on fiber while preserving existing copper infrastructure at the edge. Single-mode fiber support gives you the reach needed for longer runs, and the LC connector keeps integration straightforward in standard fiber panels and patching environments. For procurement teams supporting federal or regulated deployments, the TAA designation adds an important sourcing advantage. Choose this converter when you need a focused, purpose-built bridge rather than a general-purpose networking device. It helps preserve switch ports, simplifies migration to fiber, and supports cleaner segmentation between network zones. In rack closets, telecom rooms, and distributed sites, that can reduce rework while keeping the network path predictable.