- Anritsu announces a dedicated test solution for validating automotive Ethernet interfaces, developed in conjunction with a Tektronix 6 Series MSO oscilloscope.
- This solution enables the measurement and verification of physical layer parameters for 100BASE-T1 and 1000BASE-T1 Ethernet technologies, including return loss at the Media Dependent Interface (MDI) and mode conversion.
This test solution is designed for manufacturers of components, cables, and connectors working on embedded Ethernet networks, with a focus on the development and certification of automotive communication systems. This test solution is based on the Anritsu ShockLine MS46524B series vector network analyzer, coupled with the Tektronix MSO Series 6 oscilloscope. It enables frequency-domain S-parameter measurements, which are then transferred to the oscilloscope for automated compliance testing using TekExpress software for automotive Ethernet. The test procedures are aligned with the Open Alliance PMA TC8 specifications and the IEEE 802.3bw, 802.3bp, and 802.3ch standards, which govern embedded Ethernet in vehicles.
The evolution of automotive electronic architectures, characterized by increased data rates for driver assistance systems, infotainment, and automated driving functions, is leading manufacturers and suppliers to strengthen the validation of internal communication links. In this context, compliance with Ethernet standards and control of signal integrity are key issues for ensuring the interoperability of equipment from different vendors.
According to Anritsu, the use of the MS46524B series four-port vector network analyzer allows for the characterization of impedance matching and differential behavior of automotive Ethernet links. The measurements taken can then be used by TekExpress software to verify compliance with Open Alliance criteria and generate documented test reports.
The typical test setup includes an Ethernet test device, the equipment under test, a common ground connection, phase-stable cables, and calibration kits. Qualifying the test devices according to Open Alliance specifications is presented as a necessary condition for ensuring the repeatability and consistency of the results.
The ShockLine MS46524B analyzer supports differential measurements up to 43.5 GHz and can be remotely controlled via SCPI commands, facilitating its integration into automated validation environments or production test lines.
