A media converter translates between different Ethernet physical layers such as T1 and TX.

A media converter is a hardware adapter that translates between different Ethernet physical layers, for example between 100/1000BASE-T1 and classic 100/1000BASE-TX. Such devices are required to connect PCs, standard Ethernet tools, or loggers to Automotive Ethernet links. In practice, they are essential for diagnostics, development, ECU flashing, bus access, and logging on T1-based vehicle networks.