Optical Line Converter offers protocol transparent connectivity between fiber optical links with an added flexibility of Small Form Factor Pluggable (SFP) technology. xFMFF4040-100 is a universal platform to accommodate any optical conversion options available via SFP interfaces.These converters offer an excellent upgrade path for the networks. Today's Fast Ethernet applications can be upgraded to Gigabit speeds tomorrow with a simple SFP swap. The converter remains installed, managed and fully operational at any of these speeds.Two SFP module slots allow for seamless connectivity between different wavelengths or fiber modes for speeds up to 2.5Gbps. Protocol independence allows for use in broad range of applications including Fast and Gigabit Ethernet, FDDI, ESCON, SONET OC-3, OC-12, OC-48 and Fibre Channel.