Finisar''s FTLX1672M3BCL optical transceivers are Enhanced Small Form Factor Pluggable (SFP+) transceivers designed for use in 10-Gigabit multi-rate links up to 40km of G.652 single mode fiber. They are compliant with SFF-8431, SFF-8432, SONET OC-192 IR-2R/3R, SDH STM-64.2b/3b, OTN P1S1-2D2b, 10GBASE-ER/EW and support 8.5G and 10G Fibre Channel. The FTLX1672M3BCL transceivers use internal clock and data recovery (CDR) IC''s for the transmitter and receiver. This guarantees compliance with the SONET/SDH jitter requirements and it can be used to set the electrical interface to be XFI-compliant.Digital diagnostics functions are available via a 2-wire serial interface, as specified in SFF-8472. Finisar''s FTLX1672M3BCL transceivers are RoHS compliant.