40GBASE-LR4 2km Lite QSFP+ Optical Transceiver
Finisar’s FTL4C1QL2C QSFP+ optical transceiver modules are designed for use in 40 Gigabit Ethernet links over single mode fiber. They are compliant with the QSFP+ MSA and are compatible with IEEE 802.3ba 40GBASE-LR4 up to 2 km. Digital diagnostics functions are available via an I2C interface, as specified by the QSFP+ MSA. The optical transceiver is compliant per the RoHS Directive 2011/65/EU. See Finisar Application Note AN-2038 for more details.