Getting help and support............................................................................................................................................................. 11
Required instruments and applications................................................................................................................................13
Required instruments and applications for 10Base-T1S Suite..................................................................................... 13
Required instruments and applications for 100Base-T1 Suite......................................................................................14
Required instruments and applications for 1000Base-T1 Suite....................................................................................15
Required instruments and applications for MultiGBase-T1 Suite................................................................................. 17
List of supported instrument models.................................................................................................................................... 19
List of supported instrument models for 10Base-T1S...................................................................................................19
List of supported instrument models for 100Base-T1................................................................................................... 20
List of supported instrument models for 1000Base-T1................................................................................................. 21
List of supported instrument models for MultiGBase-T1...............................................................................................23
Downloading and installing the software..............................................................................................................................24
Activate the license.............................................................................................................................................................. 24
View software version and license key details.....................................................................................................................24
Setting up the test environment.................................................................................................................................................. 26
Calibrate the Oscilloscope................................................................................................................................................... 26
Search instruments connected to the application................................................................................................................ 29
Automate AWG/AFG signal generation............................................................................................................................... 30
Before you click start............................................................................................................................................................32
Starting the application................................................................................................................................................................33
Options menu functions....................................................................................................................................................... 36
TekExpress instrument control settings............................................................................................................................... 38
Setup panel: Configure the test setup.........................................................................................................................................39
DUT: Set DUT settings.........................................................................................................................................................41
Test Selection: Select the tests............................................................................................................................................ 45
Acquisitions: Set waveform acquisition settings.................................................................................................................. 47
Acquire live waveforms for analysis..............................................................................................................................49
Use pre-recorded waveforms for analysis.................................................................................................................... 51
Acquire step by step..................................................................................................................................................... 52
Naming convention of Pre-recoded mode.................................................................................................................... 53
Configuration: Set measurement limits for tests.................................................................................................................. 54
Preferences: Set the test run preferences........................................................................................................................... 69
Status panel: View the test execution status...............................................................................................................................71
View test execution status....................................................................................................................................................71
View test execution logs.......................................................................................................................................................72
Results panel: View summary of test results...............................................................................................................................74
Filter the test results.............................................................................................................................................................74
View a generated report.......................................................................................................................................................81
Saving and recalling test setup................................................................................................................................................... 85
Test setup files overview...................................................................................................................................................... 85
Save the configured test setup............................................................................................................................................ 85
Load a saved test setup.......................................................................................................................................................85
Select a pre-run session from the loaded test setup............................................................................................................85
Save the test setup with a different name............................................................................................................................86
10Base-T1S Test limits................................................................................................................................................. 87
10Base-T1S Example Test Mode waveforms...............................................................................................................88
100Base-T1 Test limits..................................................................................................................................................89
100Base-T1 Example Test Mode waveforms............................................................................................................... 89
1000Base-T1 Test limits................................................................................................................................................91
1000Base-T1 Example Test Mode waveforms............................................................................................................. 92
MultiGBASE-T1 Test Limits...........................................................................................................................................93
MultiGBASE-T1 example Test Mode waveforms..........................................................................................................94
Test Fixture.......................................................................................................................................................................... 95
10/100/1000Base-T1 Test Fixture: Differential..............................................................................................................95
10/100/1000Base-T1 Test Fixture: Single-Ended......................................................................................................... 97
Test Mode list for each Technology......................................................................................................................................99
10Base-T1S: Setting up the different transmitter load conditions with the fixture..............................................................100
Measurements using symbol rate clock (TX_TCLK) of DUT............................................................................................. 101
Measurement procedure using TC1 differential coupon and the single-ended test fixture................................................103
Return Loss measurement Calibration...............................................................................................................................110
Return Loss measurement.................................................................................................................................................116
Return Loss measurement using VNA Result File.............................................................................................................120
Test mode list..................................................................................................................................................................... 148
Clock line measurements...................................................................................................................................................148
Return loss measurement using VNA Result File..............................................................................................................155
Socket configuration for SCPI commands......................................................................................................................... 158
Set or query the device name of application......................................................................................................................164
Set or query the suite name of the application...................................................................................................................164
Set or query the test name of the application.................................................................................................................... 165
Set or query the general parameter values........................................................................................................................167
Set or query the acquire parameter values........................................................................................................................172
Set or query the analyze parameter values....................................................................................................................... 181
Query the list of available instruments based on the specified instrument type.................................................................184
Set or query the IP address of the instrument based on the specified instrument type.....................................................184
Query the information of the generated report file............................................................................................................. 184
Query the information of the generated waveform files..................................................................................................... 185
Query the information of the generated image files........................................................................................................... 185
Query the active TekExpress application name................................................................................................................. 186
Sets or query the acquire mode status.............................................................................................................................. 186
Set or query the execution mode status............................................................................................................................ 186
Generate the report for the current session....................................................................................................................... 187
Query the value of specified report header field in the report............................................................................................ 187
Query the value of specified result detail available in report summary/details table..........................................................188
Restore the setup to default settings................................................................................................................................. 188
Save the setup................................................................................................................................................................... 189
Save the settings to a specified session............................................................................................................................ 189
Open the setup from a specified session...........................................................................................................................189
Query the current setup file name......................................................................................................................................189
Run/stop/pause/resume the selected measurements execution in the application........................................................... 190
Query the current measurement execution status............................................................................................................. 190
Query whether the current setup is saved or not saved.................................................................................................... 190
Query the status of the previous command execution.......................................................................................................191
Query the last error occurred............................................................................................................................................. 191
Set or query the popup details........................................................................................................................................... 191
Set or query the session create option in the continuous run function.............................................................................. 192
Set or query the View report after generating option status...............................................................................................192
Set or query the waveform file recalled for the specified test name and acquire type.......................................................193
Sets or query the limit values in the limits editor window...................................................................................................193
Set or query the enable/disable status of Verbose function...............................................................................................194
Exit or close the application............................................................................................................................................... 194
File name extensions......................................................................................................................................................... 198
Measurement and application error messages..................................................................................................................199
How to load the setup file into AFG31000 for Return Loss measurement (100 BASE-T1)................................................202
Measurement results saved in CSV file format..................................................................................................................203
Return Loss measurement..........................................................................................................................................205
MDI Random Jitter......................................................................................................................................................208
Transmit MDI deterministic jitter in master mode........................................................................................................208
Transmit MDI Even-Odd jitter in master mode............................................................................................................209
Oscilloscope noise calculation procedure using Linearity measurement....................................................................217
BAT Files Location......................................................................................................................................................221
The TekExpress Automotive Ethernet application is a compliance test solution to perform transmitter electrical specification measurements
and MDI return loss measurements in accordance to IEEE. Supports an OPEN Alliance PMA test suites for the Automotive Ethernet
technologies; 10BASE-T1S, 100BASE-T1, 1000BASE-T1, and MultiGBASE-T1. The IEEE specifications for 10BASE-T1S, 100BASE-T1,
1000BASE-T1, and MultiGBASE-T1 technologies are IEEE Std 802.3cg™-2019, IEEE P802.3bw™/D3.3 , IEEE P802.3bpTM-2016 and
IEEE Std 802.3ch™ -2020 respectively.
Key features
•Fully automated setup wizard to perform transmitter electrical specification measurements and MDI electrical specification return loss
measurements.
•Comprehensive reports of results with Pass/Fail status along with plots
•Offers full coverage of test measurements
•An instrument offers full coverage of measurements. Return Loss measurement is offered as a patented approach and requires an
oscilloscope only, without the need of an additional instrument (VNA).
•Power Spectral Density (PSD) is an oscilloscope-based measurement and Spectrum analyzer is not required.
•TekExpress Automotive Ethernet application offers you a patented Return Loss measurement, which allows you to perform the
measurement without using a VNA.
•Transmit distortion measurement without need of external hardware clock divider unit, using software signal correction method.
•Validates Test Mode signals before performing measurements.
•Ability to run the measurements multiple times and generate result statistics across runs.
Use the product documents for more information on the application functions, understand the theory of operation, how to remotely program
or operate the application, and do other tasks.
Table 1: TekExpress Application documents
To learn aboutUse this document
How to use the application
How to remotely control the instrument
TekExpress <Application Name> Help
PDF version of this document can be downloaded from www
.tek.com/downloads
Compiled HTML (CHM) version is integrated with the application. Press F1
keyboard to start the help.
Tektronix Part Number: 077-xxxx-xx
key from the
Conventions
This application help uses the following conventions:
•The term "Application," and "Software" refers to the T
•The term “DUT” is an abbreviation for Device Under Test.
•The term “select” is a generic term that applies to the two methods of choosing a screen item (button control, list item): using a mouse
or using the touch screen.
•A Note identifies important information.
Table 2: Icons used in the help
IconDescription
This icon identifies important information
This icon identifies conditions or practices that could result in loss of data.
ekExpress Application.
This icon identifies additional information that will help you use the application more
efficiently
Tektronix values your feedback on our products. T
your application or oscilloscope. Contact Tektronix through mail, telephone, or the Web site. See Contacting Tektronix at the front of this
document for contact information.
When you contact Tektronix Technical Support, please include the following information (be as specific as possible):
o help us serve you better, please send us your suggestions, ideas, or comments on
General information
•All instrument model numbers
•Hardware options, if any
•Modules used
•Your name, company, mailing address, phone number, FAX number
•Please indicate if you would like to be contacted by Tektronix about your suggestion or comments.
Application specific information
•Software version number
•Description of the problem such that technical support can duplicate the problem
•If possible, save the setup files for all the instruments used and the application
•If possible, save the TekExpress setup files, log.xml, *.TekX (session files and folders), and status messages text file
Calibration step is done to calibrate the disturber signal source amplitude and frequency
PIN points on the test fixture. You can perform calibration on live DUT signal and disturber source signal connected as mentioned in the
calibration connection diagram.
Note: It is recommended to do calibration of the waveforms for Transmitter Distortion
measurement on page 116.
Calibration for transmitter distortion measurement
. It measures the DUT signal level at defined
on page 122 and Return Loss
Figure 1: Calibration tab for 1000Base-T1 transmitter distortion measurement
Figure 4: Calibration tab for return loss measurement for 10Base-T1S
Table 13: Calibration settings
ParameterDescription
Live CalibrationSets the live calibration process. The live Calibration files are saved in
X:\Automotive Ethernet\Calibration folder.
Use Pre-recorded Calibration
Channel drop downAllows you to select relevant channel and probes.
Cal TypeDisplays the type of calibration: Load, Open, and Short.
Cal StatusDisplays the status of the calibration: Pending, Done.
Cal TimeDisplays the previous calibration time: Date, Month, and Year.
SchematicClick to view the schematic diagram for the selected measurement.
PlotClick to view the plot.
ApplyClick to apply the configured parameters to calibration.
RunClick to run the process of calibration.
Table continued…
Sets the calibration process with prerecorded calibrated waveforms and allows you
to browse and select the calibrated waveforms. The path for selecting the calibrated
waveforms is
Default buttonClick to perform calibration by using default values.
Setting up the test environment
ransmitter distortion
ransmitter
To manually set up signal source: Click here and
copy files to USB drive and recall on connected
signal source.
Note: This button is applicable only for T
measurement. The expected and measured values for T
distortion on Calibration tab will be initially empty, when you launch the
application for the first time and they get populated once you click the
Default button.
In case of manual signal source (AFG/AWG) setup, click the link and copy the
relevant folder and recall the setup on connected signal source.
Search instruments connected to the application
Use the TekExpress Instrument Control Settings dialog box to search the instruments (resources) connected to the application. The
application uses T
Note: The instruments required for the test setup must be connected and detected by the application, before running the test.
To refresh the list of connected instruments:
1. Select Options > Instrument Control Settings.
2. In the Search Criteria section of the Instrument Control Settings dialog box, select the connection types of the instruments to
search. Instrument search is based on the VISA layer, but dif
USB. For example, if you choose LAN, the search will include all the instruments supported by the TekExpress that are communicating
over the LAN.
3. Click Refresh. The TekExpress application searches for the connected instruments.
ekVISA to discover the connected instruments.
ferent connections determine the resource type, such as LAN, GPIB, and
Figure 5: Search status of the instruments connected to LAN
4. When the search is complete, a dialog box lists the instrument-related details based on the search criteria. For example, for the Search
Criteria as LAN and GPIB, the application displays all the LAN and GPIB instruments connected to the application.
Figure 6: TekExpress Instrument Control Settings window
The details of the instruments are displayed in the Retrieved Instruments table. The time and date of instrument refresh is displayed in
the Last Updated field.
Automate AWG/AFG signal generation
The T
ekExpress Automotive Ethernet application allows you to automatically load the pattern files in AWG/AFG and generate the signals.
Ensure that the GPIB/LAN/USB connection between the oscilloscope and AWG/AFG is established, before you automate the signal
generation. The AWG/AFG automation is supported for the following measurements:
•Transmitter Distortion on page 122: AWG/AFG is used to transmit a disturbing signal. CH1 and CH1_inverted are used.
•Return Loss measurement on page 116: AWG/AFG is used to transmit a wide band signal. CH1 and CH1_inverted are used for
transmission of the signal. A marker signal has to be connected to the auxiliary channel of the oscilloscope (used as trigger source).
How to automate AWG/AFG signal generation
Complete the following steps in the TekExpress application to automate the signal generation from AWG/AFG:
1. Click in the upper right corner of the application and select Instrument Control Settings.
2. Select Search Criteria as USB and click Refresh; when the Retrieved Instruments table is uploaded with the connected instruments