Importance of Logging TX Equalization Settings

In addition to transceiver information, it is also important to log the host side and module side TX equalization settings in the test report. This ensures a comprehensive record of all relevant parameters affecting the cable’s signal integrity and performance. By including these settings, users can:

  • Analyze Performance: Understand how different equalization settings impact the overall performance of the cable.

  • Ensure Consistency: Verify that the same settings are used across different tests for accurate comparison.

  • Optimize Settings: Identify the optimal equalization settings for specific cables and environments.

By logging these settings, the test reports become more informative and valuable for making data-driven decisions.

Host-Side TX Equalization Settings

For the host side, the following TX equalization settings should be logged per lane per port:

  • Pre3 (dB)

  • Pre2 (dB)

  • Pre (dB)

  • Main (mV)

  • Post (dB)

Module-Side TX Equalization Settings

For the module side, the following TX equalization settings should be logged per lane per port:

  • Precursor (dB)

  • Amplitude (dB)

  • Postcursor (dB)