The ML4662 series 10BASE-FL Transeiver from Micro Linear Corp.
Currently available from euro-tech brokered stock is the ML4662CQ converter IC from Micro Linear.
Available in 28 Pin PLCC package
Part Number: ML4662CQ
Description:Combined with the ML4622 or ML4624, the ML4662 offers a complete implementation of an 10Base-FL Medium Attachment Unit (MAU).
Manufacturer: Micro Linear Corporation (Acquired by Sirenza Microdevices)..
Package: 28 Pin PLCC Molded.
Price: Available on application.
Quantity: There are currently 500+ pieces available.
A full data sheet for ML4662CQ
is available to download here: 
