OC-3 LR-2/STM L-1.2 SFP Transceiver
https://www.epsglobal.com/Media-Library/EPSGlobal/Products/files/finisar/transceivers/FTLF1523P1xTL.jpg?ext=.jpg&maxsidesize=400
1550nm DFB, PIN, OC-3 LR-2, 155 Mb/s transceiver, RoHS compliant, single mode, pluggable SFP footprint, 3.3V, LC connector, digital diagnostics, -40/85°C operation, 80km
FTLF1523P1BTL
FTLF1523P1BTL
Coherent | Finisar
https://www.epsglobal.com/getmetafile/94cfad1c-656d-435e-8625-94600a97706c/Coherent | Finisar