ATOP 10G SFP+ LR for Ethernet is designed for use in 10Gigbit, multi-rate links up to 10KM of G.652 single mode fiber. Compatible with SFF-8431, SFF-8432 and supporting 10G Ethernet LR protocol, this product is ideally suited for data center FAST Ethernet and Fiber Channel applications. Digital diagnostics functions are available via an I2C interface, as specified by SFF-8472.