*-T1 Ethernet was designed by Broadcom and the car manufacturers to implement single pair ethernet for automotive applications. Specifically for things like bac

*-T1 Ethernet was designed by Broadcom and the car manufacturers to implement single pair ethernet for automotive applications. Specifically for things like backup cameras, ADAS, etc. The standard is less than 10 years old and has nothing to do with 10base-T. https://en.wikipedia.org/wiki/BroadR-Reach https://en.wikipedia.org/wiki/BroadR-Reach 100Base-T1 has more in common with 1000BASE-T than the legacy standards, imagine if you took a single pair from the 4 needed to do Gigabit.