Finisar's FTLF1721P1xCL 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 and Fibre Channel as well as being 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.