Automotive Ethernet Compliance: The Five Test Modes

Figure 1:Automotive Ethernet electrical compliance test
is defined at the connector of the transmitter

Following up on our introduction to Automotive Ethernet compliance testing, let's move on to an overview of the five test modes that comprise the compliance test suite for the 100Base-T1 protocol. The test modes allow for a common pattern to test stressful conditions across all devices. Testing in this fashion offers the best possible odds for achieving true interoperability.

Fundamentals of the BroadR-Reach Protocol

Figure 1: BroadR-Reach
delivers bandwidth of
100 Mb/s

The burgeoning complexity of vehicular networks, the resultant high bandwidth demands, and the harshness of the automotive environment have driven the development of what we know today as Automotive Ethernet. Our last post began an overview of Automotive Ethernet technology, focusing on the physical/mechanical constraints and industry trends that influenced the protocol's development. Next, let's look more closely at the BroadR-Reach protocol.