ATOP 10G SFP+ series consist of 10G SFP+ LR, 10G SFP+ ER, 10G SFP+ SR and 10G SFP+ ZR, designed for use in 10Gigbit, multi-rate links up to 80KM of G.652 single mode fiber. Compatible with SFF-8431, SFF-8432 and supporting SDH/SONET, 10G Ethernet and 10G Fiber Channel protocol, these products are well suited for telecom transmission networks as well as data center networks. Digital diagnostics functions are available via an I2C interface, as specified by SFF-8472.