Technica Engineering, Media Converter, models:

100/1000BASE-T1 MEDIACONVERTER MATEnet	User Manual
100BASE-T1 MEDIACONVERTER BCM	User Manual
100BASE-T1 MEDIACONVERTER NXP	User Manual
MATEnet 1000BASE-T1	User Manual
TE-1350	User Manual
USB 100BASE-T1 MEDIACONVERTER	User Manual
USB-100BASE-T1	User Manual