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

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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:

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In North America, call 1-800-833-9200.

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Worldwide, visit www.tek.com to find contacts in your area.

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

TekExpress® 400G-TXE Printable Application Help i

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

ii TekExpress® 400G-TXE Printable Application Help

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

TekExpress® 400G-TXE Printable Application Help iii

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.

TekExpress® 400G-TXE Printable Application Help v

Welcome

Key features of TekExpress 400G-TXE include:

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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)

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In-depth analysis and debug capabilities of electrical PAM4 signals in combination with the PAM4 software package

vi TekExpress® 400G-TXE Printable Application Help

Getting help and support

Conventions

Help uses the following conventions:

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The term "Application" and "Software" refers to the TekExpress 400G-TXE Solution application.

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The term “DUT” is an abbreviation for Device Under Test.

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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

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):

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General information

All instrument model numbers

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Hardware options, if any

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Probes used

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Your name, company, mailing address, phone number, FAX number

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Please indicate if you would like to be contacted by Tektronix about your suggestion or comments.

Application specific

information

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Software version number

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Description of the problem such that technical support can duplicate the problem

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If possible, save the setup files for all the instruments used and the application

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If possible, save the TekExpress setup files, log.xml, *.TekX (session files and folders), and status messages text file

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If possible, save the waveform on which you are performing the measurement as a .wfm file

TekExpress® 400G-TXE Printable Application Help 3

Getting help and support

4 TekExpress® 400G-TXE Printable Application Help

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

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Tektronix DPO70K, DX / SX series oscilloscope

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Firmware Version: 10.4 or above

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Opt. DJA, DJAN, PAM4, and SDLA64

Software

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IronPython 2.7.3 installed

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PyVisa 1.0.0.25 installed

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Microsoft .NET 4.0 Framework

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Microsoft Internet Explorer 7.0 SP1 or greater, or other Web browser for viewing reports

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Adobe Reader software 7.0 or greater for viewing portable document format (PDF) files

TekExpress® 400G-TXE Printable Application Help 5

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

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Wilder Host compliance board at TP1a (HCB-P) (Wilder part number: 640-0822-000)

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Wilder Module compliance board at TP4 (MCB) (Wilder part number: 640-0823-000)

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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

6 TekExpress® 400G-TXE Printable Application Help

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.

TekExpress® 400G-TXE Printable Application Help 7

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

8 TekExpress® 400G-TXE Printable Application Help

Getting started

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

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.

TekExpress® 400G-TXE Printable Application Help 11

Operating basics

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.

12 TekExpress® 400G-TXE Printable Application Help

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:

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Set the DUT parameters

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Select the tests

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Set the acquisition parameters

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Set the configuration parameters

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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.

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.”

14 TekExpress® 400G-TXE Printable Application Help

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.

TekExpress® 400G-TXE Printable Application Help 15

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.

16 TekExpress® 400G-TXE Printable Application Help

Menu Function

Help Displays the TekExpress 400G-TXE help

About TekExpress

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Displays application details such as software name, version number, and copyright

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Provides a link to the end-user license agreement

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Provides a link to the Tektronix Web site

Operating basics

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:

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Reports: Select to receive the test report with the notification email.

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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:

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Select the message file format to send: HTML (the default) or plain text.

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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.

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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.

TekExpress® 400G-TXE Printable Application Help 19

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.

20 TekExpress® 400G-TXE Printable Application Help

+ 76 hidden pages

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

Specifications and Main Features

Frequently Asked Questions

User Manual

Table of Contents

Welcome

Getting help and support

Conventions

Related documentation

Technical support

Getting started

Minimum system requirements

Instruments and accessories required

Downloading and installing the software

View software version

Application directories

File name extensions

Operating basics

Launch the application

Application panels overview

Global application controls

Application controls

Options menu overview

Configure email settings

Setup panel

Setup panel overview