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N5431B XAUI Electrical Validation with 10GBASE-CX4, CPRI, OBSAI, and Serial RapidIO Support

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Prices for: United States

* Prices are subject to change without notice. Prices shown are Manufacturer's Suggested Retail Prices (MSRP). Prices shown are exclusive of taxes.

Key Features & Specifications


  • Test framework which comes with a setup wizard for quick setup, configuration, and a powerful new multi-trial testing capability
  • Flexible signal probing setup with single-ended SMA cables or differential probes which enables testing of multiple lanes in a single run
  • Configurable test parameters for flexibility to test to other XAUI derived standards
  • Test results report documents test configuration, measurements made, pass/fail status, margin analysis, and waveforms

Standard supported

  • XAUI (IEEE 802.3-2005, Clause 47)
  • 10GBASE-CX4 (IEEE 802.3-2005, Clause 54)
  • XAUI-based CPRI, OBSAI RP3, and Serial RapidIO


  • Use the User Defined Application tool to:
  • Create and fully integrate custom tests, configuration variables and connection instructions
  • Insert external application calls into the run sequence, such as MATLAB scripts or your device controller
  • Configure additional external instruments used in your test suite


If you are designing XAUI devices, you may face challenges trying to perform design and validation tasks at the same time. The Keysight Technologies N5431B XAUI electrical validation application will help you improve your efficiency by providing fast and accurate XAUI validation. The N5431B software helps you confirm that your devices conform to the XAUI specifications as defined by the IEEE 802.3-2005 10-gigabit Ethernet specification. The superior signal integrity and probing provided by the Keysight oscilloscopes and digital signal analyzers give you confidence that your designs will meet the specifications. The application also provides support for the XAUI-derived 10GBASE-CX4 specification. Additionally, the application allows you to test to various other XAUI derived standards, such as CPRI, OBSAI RP3, 10-Gigabit Fibre Channel XAUI, and Serial Rapid IO.