N109256CB OIF-CEI 4.0 Measurement and Debug Application

N109256CB OIF-CEI 4.0 Measurement and Debug Application

Data Sheets

Introduction

 

Several industry and standards bodies have adopted pulse amplitude modulation 4-level (PAM4) technology to increase throughput within a given bandwidth compared to Non-Return-to-Zero (NRZ) technology.  As an example, an implementation agreement (IA) developed by the Optical Internetworking Forum - Common Electrical Interface (OIF-CEI) defines 56 Gb/s operation in OIF-CEI 4.0 using 26/28 PAM4 signaling (CEI-56G-VSR/MR/LR).

 

The Keysight N109256CB OIF-CEI 4.0 software is a measurement application for the DCA-X/DCA-M equivalent-time sampling oscilloscopes designed to save you time and money by automating the task of performing PAM4 and NRZ transmitter (TX) test measurements

 

Transform Complexity into Simplicity

 

The N109256CB is an easy-to-use TX test application that:

 

• Saves time in understanding details of standards 

• Reduces the time it takes to characterize your PAM4 and NRZ design from hours to minutes 

• Helps debug your device using custom configurations 

• Allows you to quickly generate HTML reports that summarize the performance of your device

 

Select Industry-leading Hardware

 

Configure your oscilloscope for single or multi-channel capability. The N109256CB application  supports a variety of digital communication analyzer (DCA) oscilloscope configurations, including  the N1000A/86100D DCA-X wide-bandwidth oscilloscope platform, and the N109X DCA-M family of oscilloscopes. For return loss, the software controls an N1055A TDR module (or an economy or performance network analyzer) and performs S-parameter measurements. For more hardware configuration details, refer to the Ordering Guide in this document.

 

Select the Desired Software Test Suite

 

The N109256CB OIF-CEI 4.0 TX test application covers PAM4 and NRZ transmitter measurements outlined in Clauses 56G-VSR/MR/LR of OIF-CEI-04.0 (PAM4) and OIF2014.277.08 (NRZ). The tests are sorted conveniently by clause.  Click on the desired test group, and the appropriate tests are offered in Select Tests (factory-installed options shown). 

 

The N109256CB test application covers most TX tests outlined in the tables below.  For a comprehensive and up-to-date list of specific tests covered by the application, download the N109256CB application from www.keysight.com, install it on a PC, and run the application in “Demo Mode”. No license (or hardware) is required to run the software application in “Demo Mode.

 

Configure Your Measurements

 

Customize parameters that are specific to your setup, such as signaling rate and CTLE setting. Use default values or enter your own settings including number of waveforms taken, type of pattern, and pattern symbol length. Choose Normal mode to test within limits or choose Debug mode to test to your custom limits and adjust other test parameters.

 

Choose Your Test

 

The N109256CB OIF-CEI 4.0 TX test application provides comprehensive coverage of most PAM4 and NRZ tests that are specific to the clause you are testing. You may click on all available tests, a group of tests, or select individual tests to run. The full test name appears in the test list and is also shown in the test results and reports. A description of the test and reference to the Standard is shown for each test.

 

Automated retun loss measurement

 

When used in conjunction with an N1055A TDR module or vector network analyzer (ENA or PNA), the N109256CB OIF-CEI 4.0 TX test application performs differential and common mode return loss measurements.