Tektronix TekExpress 400G-TXE Electrical Compliance Solution for Real Time Oscilloscopes Online Help

TekExpress® 400G-TXE Electrical Compliance Solution for Real Time Oscilloscopes
Printable Application Help
*P077136600*
077-1366-00
TekExpress® 400G-TXE Electrical Compliance Solution for Real Time Oscilloscopes
Printable Application Help
www.tek.com
077-1366-00
Copyright © Tektronix. All rights reserved. Licensed software products are owned by Tektronix or its subsidiaries or suppliers, and are protected by national copyright laws and international treaty provisions. Tektronix products are covered by U.S. and foreign patents, issued and pending. Information in this publication supersedes that in all previously published material. Specifications and price change privileges reserved.
TEKTRONIX and TEK are registered trademarks of Tektronix, Inc.
Contacting Tektronix
Tektronix, Inc. 14150 SW Karl Braun Drive P.O. Box 500 Beaverton, OR 97077 USA
For product information, sales, service, and technical support:
In North America, call 1-800-833-9200.
Worldwide, visit www.tek.com to find contacts in your area.

Table of Contents

Welcome .............................................................................................................................................. v
Getting help and support
Conventions .................................................................................................................................... 1
Related documentation ................................................................................................................... 2
Technical support ........................................................................................................................... 3
Getting started
Minimum system requirements ...................................................................................................... 5
Instruments and accessories required ............................................................................................. 6
Downloading and installing the software ....................................................................................... 7
View software version .................................................................................................................... 7
Application directories ................................................................................................................... 8
File name extensions ...................................................................................................................... 9
Operating basics
Launch the application .................................................................................................................. 11
Application panels overview ........................................................................................................ 12
Global application controls ........................................................................................................... 14
Application controls ................................................................................................................ 14
Options menu overview ........................................................................................................... 16
TekExpress instrument control settings .................................................................................. 17
View connected instruments ................................................................................................... 18
Configure email settings .......................................................................................................... 19
Setup panel ................................................................................................................................... 20
Setup panel overview .............................................................................................................. 20
Set DUT parameters ................................................................................................................ 21
Select tests ............................................................................................................................... 22
Set acquisition tab parameters ................................................................................................. 23
Set configuration tab parameters ............................................................................................. 24
Set preferences tab parameters ................................................................................................ 27
Status panel ................................................................................................................................... 28
Status panel overview .............................................................................................................. 28
Results panel ................................................................................................................................. 29
Results panel overview ............................................................................................................ 29
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Table of Contents
View test-related files .............................................................................................................. 30
Reports panel ................................................................................................................................ 31
Reports panel overview ........................................................................................................... 31
Select report options ................................................................................................................ 31
View a report ........................................................................................................................... 34
Report contents ........................................................................................................................ 34
Running tests
Equipment connection setup ......................................................................................................... 37
Prerequisite ................................................................................................................................... 40
Compensate the signal path ..................................................................................................... 40
Deskew .................................................................................................................................... 40
Running tests ................................................................................................................................ 42
400G-TXE compliance measurements
DC common mode output voltage ................................................................................................ 43
Common mode noise .................................................................................................................... 44
Single-ended output voltage ......................................................................................................... 45
Diff peak to peak output voltage Tx enabled ............................................................................... 46
Transition time .............................................................................................................................. 47
Eye width, eye height, and eye linearity ....................................................................................... 48
Eye symmetry mask width ........................................................................................................... 49
Signal-to-noise and distortion ratio .............................................................................................. 50
Level separation mismatch ratio ................................................................................................... 51
Linear fit pulse peak ..................................................................................................................... 52
Steady state voltage ...................................................................................................................... 53
Even odd jitter .............................................................................................................................. 54
Uncorrelated bounded high probability jitter & Uncorrelated unbounded gaussian jitter ........... 55
SCPI commands
About SCPI command .................................................................................................................. 57
Socket configuration for SCPI commands ................................................................................... 57
TEKEXP:*IDN? ........................................................................................................................... 65
TEKEXP:*OPC? .......................................................................................................................... 65
TEKEXP:ACQUIRE_MODE ...................................................................................................... 66
TEKEXP:ACQUIRE_MODE? .................................................................................................... 66
TEKEXP:EXPORT ...................................................................................................................... 67
TEKEXP:INFO? ........................................................................................................................... 67
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Table of Contents
TEKEXP:INSTRUMENT ............................................................................................................ 68
TEKEXP:INSTRUMENT? .......................................................................................................... 68
TEKEXP:LASTERROR? ............................................................................................................. 69
TEKEXP:LIST? ............................................................................................................................ 69
TEKEXP:MODE .......................................................................................................................... 70
TEKEXP:MODE? ........................................................................................................................ 71
TEKEXP:POPUP ......................................................................................................................... 71
TEKEXP:POPUP? ........................................................................................................................ 72
TEKEXP:REPORT ...................................................................................................................... 72
TEKEXP:REPORT? ..................................................................................................................... 73
TEKEXP:RESULT? ..................................................................................................................... 73
TEKEXP:SELECT ....................................................................................................................... 74
TEKEXP:SELECT? ..................................................................................................................... 75
TEKEXP:SETUP .......................................................................................................................... 75
TEKEXP:STATE ......................................................................................................................... 76
TEKEXP:STATE? ........................................................................................................................ 76
TEKEXP:VALUE ........................................................................................................................ 77
TEKEXP:VALUE? ...................................................................................................................... 78
Command parameters list ............................................................................................................. 79
Examples ..................................................................................................................................... 84
References
Parameters .................................................................................................................................... 87
About application parameters .................................................................................................. 87
Setup panel configuration parameters ..................................................................................... 87
Reports panel parameters ........................................................................................................ 91
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Table of Contents
iv TekExpress® 400G-TXE Printable Application Help

Welcome

Welcome to Tektronix Real Time Oscilloscope based 400G-TXE electrical compliance test solution. The 400G-TXE is a TekExpress compliance software which evaluates the electrical PAM4 signals to the specification-mandated limits.
The 400G-TXE Real-Time electrical compliance test solution provides turnkey testing and debug of the TX electrical properties, key to OIF-CEI-VSR/MR/LR standards. It tests the OIF-CEI specification levels in a simple, cost effective manner. It aligns the best in class Real Time Oscilloscope performance with strong market demand for 400G based electrical PAM4 analysis tools.
The 400G-TXE solution specifically targets sections 16.3.2, 16.3.3, 16.B of OIFCEI-56-VSR standard, section 17.3 of OIF-CEI-56G-MR standard, and section 21.3 of OFI-CEI-56G-LR standard, while offering comprehensive test automation, results margining, data logging, and results reporting in an advanced testing framework.
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Welcome
Key features of TekExpress 400G-TXE include:
Streamlined and fully automated transmitter characterization of OIF­CEI-56G-VSR, OIF-CEI-56G-MR, and OIF-CEI-56G-LR electrical transmitter specifications (chip-to-chip and chip-to-module)
In-depth analysis and debug capabilities of electrical PAM4 signals in combination with the PAM4 software package
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Getting help and support

Conventions

Help uses the following conventions:
The term "Application" and "Software" refers to the TekExpress 400G-TXE Solution application.
The term “DUT” is an abbreviation for Device Under Test.
The term “select” is a generic term that applies to the different methods of choosing a screen item (button, control, list item): using a mouse or using the touch screen.
Table 1: Icon descriptions
Icon Meaning
This icon identifies important information.
This icon identifies conditions or practices that could result in loss of data.
This icon identifies additional information that will help you use the application more efficiently.
TekExpress® 400G-TXE Printable Application Help 1
Getting help and support

Related documentation

The following documentation is available as part of the TekExpress® 400G-TXE Solution application.
Table 2: Product documentation
Item Purpose Location
Help Application operation
and User Interface help
PDF of the help Printable version of the
compiled help
PDF file that ships with 400G-TXE Solution software distribution (TekExpress 400G-TXE-
Automated-Test-Solution-Software-Printable­Help-EN-US.pdf).
You can download the PDF version of the manual from the Tektronix website. Part number: 077-1366-00
www.tek.com
See also:
Technical support
2 TekExpress® 400G-TXE Printable Application Help
Getting help and support

Technical support

Tektronix values your feedback on our products. To help us serve you better, please send us your suggestions, ideas, or comments on your application or oscilloscope. Contact Tektronix through mail, telephone, or the website. See
Contacting Tektronix for more information.
When you contact Tektronix Technical Support, please include the following information (be as specific as possible):
General information
All instrument model numbers
Hardware options, if any
Probes 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
If possible, save the waveform on which you are performing the measurement as a .wfm file
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Getting help and support
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Getting started

Minimum system requirements

The following table shows the minimum system requirements to install and run the TekExpress 400G-TXE solution.
Table 3: System requirements
Component Description
Oscilloscope
Tektronix DPO70K, DX / SX series oscilloscope
Firmware Version: 10.4 or above
Opt. DJA, DJAN, PAM4, and SDLA64
Software
IronPython 2.7.3 installed
PyVisa 1.0.0.25 installed
Microsoft .NET 4.0 Framework
Microsoft Internet Explorer 7.0 SP1 or greater, or other Web browser for viewing reports
Adobe Reader software 7.0 or greater for viewing portable document format (PDF) files
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Getting started

Instruments and accessories required

TekExpress 400G-TXE application is launched on DPO70K series oscilloscope. The following table lists the instruments and accessories required for this application.
Table 4: Instruments and accessories required for 400G-TXE application
Instrument/Accessory Model number Quantity
Oscilloscope DPO73304DX, MSO73304DX,
DPO73304SX, DPS73308SX, DPO75002SX, DPS75004SX, DPO77002SX, DPS77004SX, DPO75902SX, DPS75904SX
Cables Compatible SMA cables with
bandwidth greater than 40 GHz for connecting single ended sources ATI channel.
Fixtures
Wilder Host compliance board at TP1a (HCB-P) (Wilder part number: 640-0822-000)
2
2
1
Wilder Module compliance board at TP4 (MCB) (Wilder part number: 640-0823-000)
Any compatible text fixture for CEI-VSR at TP0a, CEI­MR and CEI-LR
DC Blocks Compatible DC block with
bandwidth range 50 KHz to 65 GHz
Attenuator 3, 6, or 10 dB attenuators 2
2
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Downloading and installing the software

Complete the following steps to download and install the latest 400G-TXE application. See Minimum system requirements for compatibility.
1. Go to www.tek.com.
2. Click Downloads. In the Downloads menu, select DOWNLOAD TYPE as
Software and enter 400G-TXE in the MODEL OR KEYWORD field and click SEARCH.
3. Select the latest version of software and follow the instructions to download. Copy the executable file to the oscilloscope.
Getting started

View software version

4. Double-click the executable and follow the on-screen instructions. The software is installed at C:\Program Files\Tektronix\TekExpress\400G-TXE\.
5. Select Analyze > 400G-TXE from the TekScope menu to Launch the
application.
Use the following instructions to view version information for the application and for the application modules such as the Programmatic Interface and the Programmatic Interface Client.
To view version information for 400G-TXE, click button in the TekExpress application and select About TekExpress.
NOTE. This example shows a typical Version Details dialog box, and may not reflect the actual values as shown when you open this item in the application.
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Getting started

Application directories

The TekExpress 400G-TXE application files are installed at the following location:
C:\Program Files\Tektronix\TekExpress\TekExpress 400G-TXE
The following table lists the application directory names and their purpose.
Table 5: Application directories and usage
Directory names Usage
Bin Contains TekExpress 400G-TXE application libraries
Compliance Suites Contains compliance-specific files
Examples Contains various support files
ICP Contains instrument and TekExpress 400G-TXE application-
specific interface libraries
Images Contains images of the TekExpress 400G-TXE application
Lib Contains utility files specific to the TekExpress 400G-TXE
application
Report Generator Contains style sheets for report generation
Tools Contains instrument and TekExpress 400G-TXE application-
specific files
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Getting started
See also

File name extensions

View test-related files
File name extensions
The TekExpress 400G-TXE application uses the following file name extensions:
File name extension Description
.TekX Application session files (the extensions may not be displayed)
.py Python sequence file
.xml Test-specific configuration information (encrypted) files
Application log files
.csv Test result reports
Plot data
.mht Test result reports (default)
Test reports can also be saved in HTML format
.pdf Test result reports
Application help document
.xslt Style sheet used to generate reports
See also
View test-related files
Application directories
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Getting started
10 TekExpress® 400G-TXE Printable Application Help

Operating basics

Launch the application

To launch the TekExpress 400G-TXE solution, select Analyze > 400G-TXE from the TekScope menu.
When you launch the application for the first time, the file C:\Users\<username> \Documents\My TekExpress\400G-TXE\Resources.xml is mapped to drive X:. This file contains information about available network-connected instruments. The session files are stored in X:\400G-TXE\. If this file is not found, then the application runs Instrument Discovery Program to detect the network-connected instruments before launching 400G-TXE solution.
If the application is behind the oscilloscope application, click Analyze > 400G- TXE to bring it to the front. To keep the 400G-TXE application window on top, select Keep On Top from the 400G-TXE Options menu.
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Operating basics
See also:
Application controls
Application panel overview

Application panels overview

TekExpress 400G-TXE solution uses panels to group Configuration, Results, and Reports settings. Click any button to open the associated panel. A panel may have one or more tabs that list the selections available in that panel. Controls in a tab can change depending on settings made in the same tab or another tab.
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Operating basics
Table 6: Application panels overview
Panel Name Purpose
Setup panel To select the test setup controls which are grouped in tabs. The controls
in a tab can change depending on settings made in the same tab or another tab. Click the Setup button to open this panel. Use this panel to:
Set the DUT parameters
Select the tests
Set the acquisition parameters
Set the configuration parameters
Set the preferences parameters
Status panel This panel displays the acquisition status and analysis status for the
selected tests in Test Status and logs in Log View.
Results panel This tab displays the summary of test results and select result viewing
preferences.
Reports panel Browse for reports, save reports as specific file types, specify report
naming conventions, replace current test results in the report with the test result(s) of previous run in current session, select report content to include (summary information, detailed information, user comments, setup configuration, application configuration), and select report viewing options.
See also:
Application controls
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Operating basics

Global application controls

Application controls

Table 7: Application controls descriptions
Item Description
Options menu
Panel buttons
Start/Stop button
Menu to display global application controls
Controls that open panels for configuring test settings and options.
Use the Start button to start the test run of the measurements in the selected order. If prior acquired measurements have not been cleared, the new measurements are added to the existing set. The button toggles to the Stop mode while tests are running. Use the Stop button to abort the test.
Pause \ Continue button
Use the Pause button to temporarily interrupt the current acquisition. When a test is paused, the button name changes to “Continue.”
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Operating basics
Item Description
Clear button
Minimize button
Close button
Application window move Place the cursor over the application window and drag it to the
Mini view / Normal view
Use the Clear button to clear all existing measurement results. Adding or deleting a measurement, or changing a configuration parameter of an existing measurement also clears measurements. This is to prevent the accumulation of measurement statistics or sets of statistics that are not coherent. This button is available only on the Results panel.
Minimizes the application.
Exits the application.
desired location.
Toggles the application between mini view and normal view. Mini view displays the run messages with the time stamp, progress bar, Start / Stop button, and Pause / Continue button. The application moves to mini view when you click the Start button.
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Operating basics

Options menu overview

To access Options menu, click in the upper-right corner of the application. It has the following:
Options menu
Menu Function
Default Test Setup Opens an untitled test setup with defaults selected
Acquire Live Waveforms
Mode: Compliance Standard: OIF-PAM4 Specification: CEI-VSR Test Point: TP0a Specification: OIF-CEI-VSR, Section 16.B.1.1 Data rate: 26.5625 GBd
Open Test Setup Opens a saved test setup
Save Test Setup Saves the current test setup
Save Test Setup As Saves the current test setup with a different file name or file type
Open Recent Displays the recently opened test setups to open
Instrument Control Settings
Keep On Top Keeps the TekExpress 400G-TXE application on top of all the application
Email Settings Use to configure email options for test run and results notifications
Deskew Use to set deskew parameter and read the deskew/attenuation values of
Detects, lists, and refreshes the connected instruments found on specified connections (LAN, GPIB, USB, and so on)
the instrument.
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Menu Function
Help Displays the TekExpress 400G-TXE help
About TekExpress
Displays application details such as software name, version number, and copyright
Provides a link to the end-user license agreement
Provides a link to the Tektronix Web site
Operating basics
See also:. Application controls
TekExpress instrument
control settings
Use TekExpress Instrument Control Settings dialog box to search the instruments (resources) connected to the application. You can use the Search Criteria to search the connected instruments depending on the connection type. The details of the connected instrument is displayed in the Retrieved Instruments window.
You can access this dialog box from the Options menu.
The connected instruments displayed here can be selected under global settings in the configuration tab.
NOTE. Select GPIB (Default) when using TekExpress 400G-TXE application.
See also:. Options menu overview
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Operating basics
View connected
instruments
Use the Instrument Control Settings dialog box to view or search for connected instruments required for the tests. This application uses TekVISA to discover the connected instruments.
To refresh the list of connected instruments:
1. From the Options menu, select Instrument Control Settings.
2. In the Search Criteria section of the Instrument Control Settings dialog box,
select the connection types of the instruments for which to search.
Instrument search is based on the VISA layer, but different connections determine the resource type, such as LAN, GPIB, and USB. For example, if you choose LAN, the search will include all the instruments supported by TekExpress that are communicating over the LAN. If the search does not find any instruments that match a selected resource type, a message appears telling you that no such instruments were found.
3. Click Refresh. TekExpress searches for connected instruments.
4. After discovery, the dialog box lists the instrument-related details based on
the search criteria you selected. For example, if you selected LAN and GPIB as the search criteria, the application checks for the availability of instruments over LAN, then GPIB.
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.
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Operating basics
See also:. Configuration test parameters
Equipment connection DIAGRAM

Configure email settings

To be notified by email when a test completes, fails, or produces an error, configure the email settings.
1. Click Options > Email Settings to open the Email Settings dialog box.
2. (Required) For Recipient email Address(es), enter one or more email
addresses to which to send the test notification. To include multiple addresses, separate the addresses with commas.
3. (Required) For Sender’s Address, enter the email address used by the instrument. This address consists of the instrument name followed by an underscore followed by the instrument serial number, then the @ symbol and the email server used. For example: DPO72016C_B130099@yourcompany.com.
4. (Required) In the Server Configuration section, type the SMTP Server address of the Mail server configured at the client location, and the SMTP Port number, in the corresponding fields.
Enter a valid login name and password in the corresponding fields. Select Enable SSL, if the server requires SSL/TLS technology.
NOTE. If any of the above required fields are left blank, the settings will not be saved and email notifications will not be sent.
5. In the Email Attachments section, select from the following options:
Reports: Select to receive the test report with the notification email.
Status Log: Select to receive the test status log with the notification email. If you select this option, then also select whether you want to receive the full log or just the last 20 lines.
6. In the Email Configuration section:
Select the message file format to send: HTML (the default) or plain text.
Enter a maximum file size for the email message. Messages with attachments larger than this limit will not be sent. The default is 5 MB.
Enter the number in the Number of Attempts to Send field, to limit the number of attempts that the system makes to send a notification. The default is 1. You can also specify a timeout period.
7. Select the Email Test Results When complete or on error check box. Use this check box to quickly enable or disable email notifications.
8. To test your email settings, click Test Email.
9. To apply your settings, click Apply.
10. Click Close when finished.
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Operating basics

Setup panel

Email settings

Setup panel overview

The Setup panel contains sequentially ordered tabs that help you guide through the test setup and execution process.
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