100BASE-T1 is a 100 Mbit/s variant of Automotive Ethernet over a single twisted pair.
100BASE-T1
100BASE-T1 is a 100 Mbit/s physical-layer variant of Automotive Ethernet over a single twisted pair. The technology was specifically designed for automotive requirements such as lower cable weight, lower cost, and strict EMI/EMC constraints. In logging, 100BASE-T1 is important because many ECUs, sensors, and Automotive Ethernet links are based precisely on this PHY.