Automotive ethernet and other bus systems

Automotive Ethernet and other bus systems

In-vehicle communication networks – automotive ethernet and other bus systems

Inside a typical car, you will find over 100 electronic control units (ECU) controlling everything from brakes, transmission, engine, A/C, steering, cameras, radar, acoustic sensors to the non-cellular and cellular wireless communications.

ECUs talk to each other via car buses, including controller area network (CAN), media oriented systems transport (MOST), local interconnect network (LIN) and FlexRay.

Automotive OEMs and Tier 1s are moving away from mixing so many different bus types to something more uniform, enabling higher data throughput, lower latency and less weight in order to reduce complexibility and increase cost-efficiency.

Rohde & Schwarz offers state-of-the-art testing solutions:

  • Trigger and decode capability for CAN, CAN-FD, LIN, FlexRay, CXPI and SENT
  • Compliance tests for automotive Ethernet (100BASE-T1, 1000BASE-T1, 2.5GBASE-T1)
  • EMI debugging capability

Automotive Ethernet and other bus systems solutions

Ethernet compliance testing

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Bus and protocol testing

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What's new: Test fixtures

10BASE-T1S Compliance

  • Test solution for 10BASE-T1S interfaces
  • Compliance test according to IEEE 802.3cg
  • Predefined, automated test steps
  • Step-by-step wizard for user guidance
  • Clear and comprehensive test documentation

Product information

R&S®RT-ZF8 automotive Ethernet compliance fixture

R&S®RT-ZF8 automotive Ethernet compliance fixture

The RT-ZF8 fixture provides all necessary connections for testing the physical layer of automotive Ethernet standards 100BASE-T1 and 1000BASE-T1

The fixture is used in combination with the R&S®RTO and R&S®RTP oscilloscopes, the R&S®ScopeSuite software and automotive Ethernet options (R&S®RTO-K24, R&S®RTP-K24, R&S®RTO-K87, R&S®RTP-K87).

R&S®RT-ZF7 automotive Ethernet trigger and decode fixture

R&S®RT-ZF7 automotive Ethernet trigger and decode fixture

The RT-ZF7 fixture is intended to be used for probing an automotive Ethernet signal (e.g. 100BASE-T1 or 1000BASE-T1). Full duplex connections can be probed on separated directions.

The fixture is used in combination with the R&S®RTO and R&S®RTP oscilloscopes and automotive Ethernet options (R&S®RTO-K57 and R&S®RTP-K57).

R&S®RT-ZF7A SMA adapter

R&S®RT-ZF7A SMA adapter

Fully compliant with the adapter specification of the OPEN Alliance Automotive Ethernet ECU Test Specification (version 2.0)

The main intended use case is to connect a twisted pair automotive Ethernet cable to SMA.

Webinar: 1000BASE-T1 automotive Ethernet compliance testing PreRoll

Free webinar: 1000BASE-T1 automotive Ethernet compliance testing

This webinar will focus on compliance testing based on the Open Alliance (OA) TC8 specification for the physical layer.

Register now and watch the webinar.

Our experts

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Dr. Nik Dimitrakopoulos, Automotive Ethernet & Infotainment

"Modern cars typically have more than 100 electronic control units (ECU) connected via different in-vehicle bus networks. These buses are used to exchange information and coordinate control. Autonomous driving technology creates a demand for much higher data rate traffic within in-vehicle communication systems. Today, we are talking about 100/1000BASE-T1. Tomorrow, it will be multi-gig speeds. To verify the functionality and quality of these data streams, automotive engineers need to be able to search for specific signals, trigger, decode, measure crosstalk and perform compliance testing."

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Dr. Ernst Flemming, Product Manager Oscilloscopes, Rohde & Schwarz

"Automotive Ethernet is now widely introduced in cars. In the OPEN Alliance, the industry has defined specific compliance tests. We offer a complete compliance test solution for 100BASE-T1 and 1000BASE-T1 that is widely accepted by OEMs, Tier 1s and test houses. With the new triggering and decoding solution for 100BASE-T1, automotive Ethernet can now be debugged the same way as the traditional CAN bus."

Impressions - Automotive Ethernet Seminar Tour 2019

Automotive Ethernet Seminar Tour 2019
Automotive Ethernet Seminar Tour 2019
Automotive Ethernet Seminar Tour 2019

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

1000BASE-T1 cable testing according to OPEN Alliance TC9

1000BASE-T1 cable testing according to OPEN Alliance TC9

A guide to perform cable testing based on unshielded twisted pair (UTP) for 1000BASE-T1 based on the OPEN Alliance TC9 specification.

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1000BASE-T1 Compliance Testing Test Mode 2

1000BASE-T1 compliance testing

Test mode 2: MDI jitter and clock frequency

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1000BASE-T1 Compliance Testing Test Mode 4: Transmitter Distortion Test with Disturber

1000BASE-T1 compliance testing

Test mode 4: Transmitter distortion test with disturber

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1000BASE-T1 Compliance Testing Test Mode 2

1000BASE-T1 compliance testing

Test mode 5: Transmitter power spectral densityy (PSD), power level and peak differential output

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1000BASE-T1 Compliance Testing Test Mode 6: Maximum output droop

1000BASE-T1 compliance testing

Test mode 6: Maximum output droop

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100BASE-T1 Compliance Testing - MDI return loss

100BASE-T1 compliance testing

MDI return loss

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Decoding Automotive Ethernet and CAN using R&S scopes

Decoding Automotive Ethernet and CAN using R&S scopes

Decoding from CAN to automotive ethernet

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Decoding for 100BASE-T1 Automotive Ethernet

Powerful 100BASE-T1 decoding

Decoding for 100BASE-T1 automotive ethernet

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Triggering for 100BASE-T1 Automotive Ethernet

Powerful 100BASE-T1 triggering

Triggering for 100BASE-T1 automotive ethernet

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Triggering & decoding 100Base-T1 BroadR-Reach Ethernet

Triggering & decoding 100Base-T1 BroadR-Reach Ethernet

Triggering & decoding real-world OABR automotive Ethernet with an oscilloscope

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Automotive Ethernet

Featured News 24-Sep-2019

Rohde & Schwarz announces first IEEE 802.3cg 10BASE-T1S compliance test solution for the automotive industry

The flexibility of Automotive Ethernet makes the simple twisted-pair network technology ideal for an ever-increasing range of in-vehicle networks. The new IEEE 802.3cg 10BASE-T1S standard expands the range of applications supported by Automotive Ethernet to include integrating simple devices into the network. With the first compliance test solution available for testing device-compliance to 10BASE-T1S, Rohde & Schwarz continues to lead the way as the test and measurement supplier for automotive Ethernet standards.

Further information

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