Tektronix TekExpress 400G-TXO Optical Compliance Solution for Sampling Scopes User manual

TekExpress® 400G-TXO Optical Compliance Solution for Sampling Scopes

Printable Application Help

*P077136300*

077-1363-00

TekExpress® 400G-TXO Optical Compliance Solution for Sampling Scopes

Printable Application Help

TekScope v6.5.1.0 or greater

www.tek.com

077-1363-00

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

Related documentation ................................................................................................................... 1

Conventions .................................................................................................................................... 2

Technical support ........................................................................................................................... 2

Getting started

Minimum system requirements ...................................................................................................... 5

Instruments and accessories required ............................................................................................. 6

Downloading and installing the software ....................................................................................... 6

View software version and license information ............................................................................. 7

Application directories ................................................................................................................... 7

File name extensions ...................................................................................................................... 8

Operating basics

Launch the application .................................................................................................................... 9

Application panels overview ........................................................................................................ 10

Global application controls ........................................................................................................... 12

Application controls ................................................................................................................ 12

Options menu overview ........................................................................................................... 14

TekExpress instrument control settings .................................................................................. 15

View connected instruments ................................................................................................... 15

Configure email settings .......................................................................................................... 17

Setup panel ................................................................................................................................... 18

Setup panel overview .............................................................................................................. 18

Set DUT parameters ................................................................................................................ 19

Select tests ............................................................................................................................... 20

Set acquisition tab parameters ................................................................................................. 21

Set configuration tab parameters ............................................................................................. 22

Set preferences tab parameters ................................................................................................ 24

Status panel ................................................................................................................................... 25

Status panel overview .............................................................................................................. 25

Results panel ................................................................................................................................. 27

Results panel overview ............................................................................................................ 27

TekExpress® 400G-TXO Printable Application Help i

Table of Contents

View test-related files .............................................................................................................. 27

Reports panel ................................................................................................................................ 28

Reports panel overview ........................................................................................................... 28

Select report options ................................................................................................................ 29

View a report ........................................................................................................................... 31

Report contents ........................................................................................................................ 32

Running tests

Equipment connection diagram .................................................................................................... 33

Oscilloscope compensation .......................................................................................................... 35

External attenuation calibration .................................................................................................... 36

Instrument noise ........................................................................................................................... 38

Running tests ................................................................................................................................ 38

Saving and recalling test setup

Test setup files overview .............................................................................................................. 39

Save a test setup ............................................................................................................................ 39

Open (load) a saved test setup ...................................................................................................... 40

Create a test setup from default settings ....................................................................................... 40

Create a new test setup using an existing one .............................................................................. 40

400G-TXO compliance measurements

Transmitter and dispersion eye closure (TDECQ) ....................................................................... 41

Average launch power .................................................................................................................. 42

Outer optical modulation amplitude ............................................................................................. 44

Signaling rate ................................................................................................................................ 45

Launch power in OMAouter minus TDECQ ............................................................................... 47

Extinction ratio ............................................................................................................................. 48

Average launch power of off-transmitter ..................................................................................... 49

RINxOMA .................................................................................................................................... 50

SCPI commands

About SCPI command .................................................................................................................. 53

Socket configuration for SCPI commands ................................................................................... 53

TEKEXP:*IDN? ........................................................................................................................... 61

TEKEXP:*OPC? .......................................................................................................................... 61

TEKEXP:EXPORT ...................................................................................................................... 62

ii TekExpress® 400G-TXO Printable Application Help

Table of Contents

TEKEXP:INFO? ........................................................................................................................... 62

TEKEXP:INSTRUMENT ............................................................................................................ 63

TEKEXP:INSTRUMENT? .......................................................................................................... 63

TEKEXP:LASTERROR? ............................................................................................................. 64

TEKEXP:LIST? ............................................................................................................................ 64

TEKEXP:MODE .......................................................................................................................... 65

TEKEXP:MODE? ........................................................................................................................ 66

TEKEXP:POPUP ......................................................................................................................... 66

TEKEXP:POPUP? ........................................................................................................................ 67

TEKEXP:REPORT ...................................................................................................................... 67

TEKEXP:REPORT? ..................................................................................................................... 68

TEKEXP:RESULT? ..................................................................................................................... 68

TEKEXP:SELECT ....................................................................................................................... 69

TEKEXP:SELECT? ..................................................................................................................... 70

TEKEXP:SETUP .......................................................................................................................... 70

TEKEXP:STATE ......................................................................................................................... 71

TEKEXP:STATE? ........................................................................................................................ 71

TEKEXP:VALUE ........................................................................................................................ 72

TEKEXP:VALUE? ...................................................................................................................... 72

Command parameters list ............................................................................................................. 73

Examples ..................................................................................................................................... 77

References

Technology overview ................................................................................................................... 79

Tektronix clock recovery unit (CRU) ........................................................................................... 80

Clock / Pre-scalar .......................................................................................................................... 82

Phase reference characterization .................................................................................................. 82

Parameters .................................................................................................................................... 83

About application parameters .................................................................................................. 83

Setup panel configuration parameters ..................................................................................... 83

Reports panel parameters ........................................................................................................ 85

TekExpress® 400G-TXO Printable Application Help iii

Table of Contents

iv TekExpress® 400G-TXO Printable Application Help

Welcome

Welcome to the Tektronix 400G-TXO, a Tektronix sampling oscilloscope application software solution that addresses 50GBASE-FR / 50GBASE-LR / 100GBASE-DR / 200GBASE-DR4 / 200GBASE-FR4 / 200GBASE-LR4 / 400GBASE-FR8 / 400GBASE-LR8 / 400GBASE-DR4 standards of IEEE. These standards are the backbone of the current 400G Ethernet industry, and the TekExpress 400G TXO automation test solution facilitates turnkey optical transmitter validation of 400G Ethernet systems.

The 400G-TXO solution specifically targets sections D1.0 of IEEE802.3cd and D2.2 of IEEE802.3bs specifications. These tools allow verification to these IEEE optical standards, while offering comprehensive test automation, results margining, data logging, and result reporting in an advanced testing framework.

TekExpress® 400G-TXO Printable Application Help v

Welcome

Key features of TekExpress 400G-TXO include:

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400G-TXO offers transmitter based 50GBASE-FR and 50GBASE-LR optical transmitter characterization testing at TP2, as per IEEE 802.3cd, section D1.0, table 139-6 specification.

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400G-TXO incorporates 100GBASE-DR optical transmitter standards at TP2, as per IEEE 802.3cd, section D1.0, table 140-6 specification.

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400G-TXO incorporates 200GBASE-DR4 optical transmitter standards at TP2, as per IEEE 802.3bs, section D2.2, table 121-6 specification and 200GBASE-LR4 and 200GBASE-FR4 optical transmitter at TP2, as per IEEE 802.3bs, section D2.2, table 122-9 specification.

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400G-TXO incorporates 400GBASE-FR8 and 400GBASE-LR8 optical transmitter standards at TP2, as per IEEE 802.3bs, section D2.2, table 122-10 specification and 400GBASE-DR4 optical transmitter standards at TP2, as per IEEE 802.3bs, section D2.2, table 124-6 specification.

vi TekExpress® 400G-TXO 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-TXO 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 2: Icon descriptions

Icon Meaning

This icon identifies important information.

This icon identifies conditions or practices that could result in loss of data.

Technical support

General information

This icon identifies additional information that will help you use the application more efficiently.

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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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.

2 TekExpress® 400G-TXO Printable Application Help

Getting help and support

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Application specific

information

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-TXO Printable Application Help 3

Getting help and support

4 TekExpress® 400G-TXO Printable Application Help

Getting started

Minimum system requirements

The following table shows the minimum system requirements to install and run the TekExpress 400G-TXO solution.

Table 3: System requirements

Component Description

Oscilloscope

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Tektronix DSA8300 Digital Sampling Oscilloscope

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Firmware Version: 6.5.1.0 or greater

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80SJNB Software Version: 4.2.6.0 or greater

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Opt ADVTRIG

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Opt JNB02

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Opt PAM4

Software

Other Devices

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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

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Microsoft compatible mouse or compatible pointing device.

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Two USB ports (four USB ports recommended).

TekExpress® 400G-TXO Printable Application Help 5

Getting started

Instruments and accessories required

The 400G-TXO application is launched on DSA8300 sampling oscilloscope. The following table lists the instruments and accessories required for this application.

Table 4: Instruments and accessories required for 400G-TXO application

Instrument/Accessory Model number Quantity

Sampling Oscilloscope Tektronix DSA8300 Digital

Serial Analyzer

Clock Recovery Unit CR286A (optional) 1

Optical Modules for 200G-DR4/ FR4/LR4 and 400G-FR8/LR8

Optical Modules for 400G-DR4 80C10C 1

Optical Power Meter supporting DR4, FR4, LR4 wavelength range

Phase Reference 82A04B (optional)

Module extender cables 80X01 (1 meter) 1

80C10C, 80C15, 80C17, 80C18 1

No recommendation 1

Downloading and installing the software

Complete the following steps to download and install the latest 400G-TXO 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-TXO 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.

4. Double-click the executable and follow the on-screen instructions. The software is installed at C:\Program Files\Tektronix\TekExpress\400G-TXO\.

5. Select Application > 400G-TXO from the TekScope menu to launch the

application.

Required to reach jitter noise floors below 100fsec

6 TekExpress® 400G-TXO Printable Application Help

View software version and license information

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 the version information, click Options > TekExpress.

A dialog box similar to the following figure appears.

Getting started

Application directories

The TekExpress 400G-TXO application files are installed at the following location:

C:\Program Files\Tektronix\TekExpress\TekExpress 400G-TXO

The following table lists the application directory names and their purpose.

TekExpress® 400G-TXO Printable Application Help 7

Getting started

Table 5: Application directories and usage

Directory names Usage

Bin Contains TekExpress 400G-TXO application libraries

Compliance Suites Contains compliance-specific files

Examples Contains various support files

ICP Contains instrument and TekExpress 400G-TXO application-

specific interface libraries

Images Contains images of the TekExpress 400G-TXO application

Lib Contains utility files specific to the TekExpress 400G-TXO

application

Report Generator Contains style sheets for report generation

Tools Contains instrument and TekExpress 400G-TXO application-

specific files

See also:

File name extensions

View test-related files

File name extensions

The TekExpress 400G-TXO 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

8 TekExpress® 400G-TXO Printable Application Help

Operating basics

Launch the application

To launch the TekExpress 400G-TXO solution, select Application > 400G-TXO from the TekScope menu.

When you launch the application for the first time, the file C:\Users\<username> \Documents\My TekExpress\400G-TXO\Resources.xml is mapped to drive X:. This file contains information about available network-connected instruments. The session files are stored in X:\400G-TXO\. If this file is not found, then the application runs Instrument Discovery Program to detect the network-connected instruments before launching 400G-TXO solution.

If the application is behind the oscilloscope application, click Application > 400G-TXO to bring it to the front. To keep the 400G-TXO application window on top, select Keep On Top from the 400G-TXO Options menu.

TekExpress® 400G-TXO Printable Application Help 9

Operating basics

See also:

Application controls

Application panel overview

Application panels overview

TekExpress 400G-TXO 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.

10 TekExpress® 400G-TXO 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.

See also:

Application controls

TekExpress® 400G-TXO Printable Application Help 11

Operating basics

Global application controls

Application controls

Table 7: Application controls descriptions

Item Description

Options menu overview on

page 14Options menu

Application controls on

page 12Panel buttons

Start/Stop button

Menu to display global application controls

Controls that open panels for configuring test settings and options.

Click the Start button to run 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.

12 TekExpress® 400G-TXO Printable Application Help

Operating basics

Item Description

Pause \ Continue button

Clear button

Minimize button

Use the Pause button to temporarily interrupt the current acquisition. When a test is paused, the button name changes to “Continue.”

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.

Close button

Application window move Place the cursor over the application window and drag it to the

Mini view / Normal view

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-TXO Printable Application Help 13

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: DR Speed: 200G Test Point: TP2 Specification: IEEE802.3bs, D2.2, Table 121-6 Data rate: 26.5625 GBd Wavelength: None Pattern Length: 511

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-TXO application on top of all the application

Email Settings Use to configure email options for test run and results notifications

Help Displays the TekExpress 400G-TXO help

About TekExpress

Detects, lists, and refreshes the connected instruments found on specified connections (LAN, GPIB, USB, and so on)

■

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

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.

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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:

■

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-TXO Printable Application Help 17

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.

18 TekExpress® 400G-TXO Printable Application Help

Operating basics

Set DUT parameters

Use the DUT tab to select parameters for the device under test. These settings are global and apply to all tests of current session. DUT settings also affect the list of available tests in the Test Selection tab.

Click Setup > DUT to access the DUT parameters:

Table 8: DUT tab settings

Setting Description

DUT ID Adds an optional text label for the DUT to reports. The default

value is DUT001. The maximum number of characters is 32. You cannot use the following characters in an ID name: (.,..,..., \,/:?”<>|*)

Opens Comments dialog box to enter text to add to the report.

Comments icon (to the

right of the DUT ID field)

Acquire Type Live waveforms.

Mode

Standard

Maximum size is 256 characters. To enable or disable comments appearing on the test report, see Select report options.

The application performs analysis on live waveforms only.

■

Compliance

■

User Defined

■

TekExpress® 400G-TXO Printable Application Help 19

Operating basics

Setting Description

Speed Select the speed from the drop-down list. The options available

depends on the Standard selected.

■

50G

■

100G

■

200G

■

400G

Test Point TP2.

Specification Displays the specification for the selected Standard and Speed.

Device Profile

Optical Module Settings

Data Rate Set the data rate to be tested.

Wavelength Select the wavelength from the drop-down list. The drop-down

lists the wavelength supported by the connected optical module.

Pattern Length Configure the repetitive pattern length to validate.

Tektronix TekExpress 400G-TXO Optical Compliance Solution for Sampling Scopes User manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Table of Contents

Welcome

Getting help and support

Related documentation

Conventions

Technical support

Getting started

Minimum system requirements

Instruments and accessories required

Downloading and installing the software

View software version and license information

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

Set DUT parameters

Select tests