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N109256CB TX Test Application Software and 30-Day Trial License

The Keysight N109256CB TX test application can be used with the N1000A/86100D DCA-X or N109X DCA-M Series oscilloscopes to quickly and accurately perform NRZ and PAM4 measurements.

Release Date Version Version Description

Free Trial Available

2019-08-29 02.00 The N109256CB application lets you quickly characterize TX parameters outlined in OIF-CEI 4.0 (56G-VSR/MR/LR).

How to Download

  • Click the download button.

How to Install

  • Run the setup program. After the installation process starts, follow the on-screen installation instructions.


Supporting Documentation


Installs on:

PC / Instrument

Operating System

  • Windows 7
  • Windows 10


  • The application can be installed on an N1000A/86100D DCA-X oscilloscope or a PC (used to control a DCA-X or DCA-M oscilloscope)
  • The application download is free and allows you to set up your test plan, but your N1000A/86100D DCA-X oscilloscope, or your PC, must have the N109256CB license and the FlexDCA interface in order to run the tests
  • N1010A FlexDCA A.06.40 or newer

Supported Instruments

  • N1000A/86100D DCA-X with N1060A/86108B (Integrated “One-Box” solution) - recommended
    N1000A/86100D DCA-X with DCA module and external clock recovery
    N109X Electrical DCA-M with external clock recovery
    Refer to Data Sheet for full details