FTLC1157RGPL QSFP28 transceiver modules are designed for use in 100 Gigabit Ethernet links on up to 2km of single mode fiber
specifically for data center applications. They are compliant with the QSFP28 MSA, CWDM4 MSA, and portions of IEEE P802.3bm.
Digital diagnostics functions are available via the I2C interface, as specified by the QSFP28 MSA and Application Notes AN-2153
and AN-2154.