Finisar’s FWLF1521P2Nxx CWDM Small Form Factor Pluggable (SFP) transceivers are designed for operation in Metro Access Rings and Point-to-Point networks using SONET ,Gigabit Ethernet and Fibre Channel networking equipment. They are available in eight different CWDM wavelengths and comply with ITU CWDM standard . Digital diagnostics functions can be accessed via an I2C serial bus. In addition, the transceivers comply with the Small Form Factor Pluggable Multi-Sourcing Agreement (MSA) are RoHS and lead free compliant per Directive 2002/95/EC and Finisar Application Note AN-2038