Automotive Ethernet compliance testing

Automotive Ethernet compliance testing

New automotive applications, such as high-powered entertainment systems, are driving up bandwidth requirements and the costs associated with cabling and network interfaces. Automotive Ethernet was designed to meet industry needs: advanced driver assistance systems demand higher data throughput for camera systems and low latency for adaptive cruise control. Automotive ethernet enables fast and cost-effective data communications by connecting automotive bus systems (in-vehicle components). This minimizes cabling, lowering fuel consumption, manufacturing costs and time to market.

Your challenges and the OPEN Alliance

The automotive industry has specified the OPEN Alliance BroadR-Reach® (OABR) physical layer, also known as IEEE 100BASE-T1, as the automotive Ethernet communications standard. It runs on standard FlexRay™ cabling and facilitates high-speed communications such as audio or video streaming. 100Base-T1 uses full duplex communications so that up to 1 Gbit/s can be transferred over one twisted pair. For interface verification, a 100BASE-T1 conformance test with six test cases is required. Like most IEEE Ethernet compliance test specifications, this compliance test focuses on transmitter quality.

Automotive Ethernet compliance testing

To verify the functionality and quality of these data streams, automotive engineers need to be able to find and test these signals easily. Rohde & Schwarz offers complete Ethernet compliance test solutions for BroadR-Reach V3.2 , IEEE 802.3bw (100Base-T1), IEEE 802.3bp (1000Base-T1) and IEEE 802.3bz (2.5GBASE-T1) in line with the OPEN Alliance compliance test specification.

Related products

R&S®RTP oscilloscopes

  • Bandwidth: 4 GHz to 16 GHz
  • Max. sample rate: 40 Gsample/s
  • Max. memory depth: 3 Gpoints per channel

Product information

R&S®ZNB3000 vector network analyzer

  • Frequency ranges from 9 kHz up to 26.5 GHz
  • Wide dynamic range of up to 150 dB
  • Ultrafast sweep cycle times

Product information

Related resources for Automotive Ethernet compliance testing

Application Note: Automotive Ethernet 1000Base-T1 TC9 measurement using VNAs

This application note is a systematic guide to help test engineers configure Vector Network Analyzers in order to perform compliance tests on Automotive Ethernet cables according to the Open Alliance TC9 standard.

More information

Application videos - Engineer's talk; Automotive Ethernet and beyond

Automotive Multigigabit

Automotive Multigigabit

In this video we use the R&S VNA ZNB20 together with TE connectivity BEAMnet miniaturized multi-gigabit connector system.
The tests are according to the OPEN Alliance TC9 draft specification for 2.5/5/10GBASE-T1

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