OC-3 SR-1/STM I-1 or OC-3 IR-1/STM S-1.1 SFP Transceiver
https://www.epsglobal.com/Media-Library/EPSGlobal/Products/files/finisar/transceivers/FTLF1323P1xTR.jpg?ext=.jpg&maxsidesize=400
1310nm FP, PIN, OC-3 IR-1/SR, 155 Mb/s transceiver, Fast E, RoHS compliant, single mode, pluggable SFP footprint, 3.3V, LC connector, digital diagnostics, -40/85°C operation, 15km
FTLF1323P1BTR
FTLF1323P1BTR
Coherent
https://www.epsglobal.com/getmetafile/94cfad1c-656d-435e-8625-94600a97706c/Coherent