Finisar’s FTLF1721P1BCL Small Form Factor Pluggable (SFP) transceivers are compatible with the Small Form Factor Pluggable Multi-Sourcing Agreement (MSA) . They comply with SONET OC-48 LR-1 (SDH STM L-16.1) standards , Gigabit Ethernet as specified in IEEE Std 802.3(*) and Fibre Channel FC-PI 13.0(*). They are compatible with SONET OC-12 SR and SONET OC-3 standards . Digital diagnostics functions are available via the 2-wire serial bus specified in the SFP MSA. The optical transceivers are compliant per the RoHS Directive 2011/65/EU. See Finisar Application Note AN-2038 for more details.