Column Control DTX

PXI Matrix Switch Modules M9120A, M9121A, M9122A



Product Description

The Keysight Technologies, Inc. PXI matrix switch modules activate multiple channels in a single instance. Select a switch row to connect to any column and create routing for multiple signals between instruments and the device under test.

Choose from high-speed, long-life reed relays capable of switching up to 100 Vrms with up to 20 W of power, or the higher power armature relays capable of switching up to 60W of power. Multiple switch matrices offer a variety of power and switch density options.

Installation and configuration is fast and easy with standard cable connections or an optional connector block, soft front panels, and Keysight Connection Expert. In addition, software drivers support the most common programming environments such as Visual Studio, C, C++, Visual Basic, MATLAB, and LabVIEW.


  •  Aerospace and defense
  •  Automotive
  •  Electronic test
  •  Medical
  •  Semiconductor


  •  Quickly connect multiple high-voltage points
  •  High-density modules provide more connections in a smaller area
  • Up to 256 2-wire crosspoints
  • High-speed, long-life reed relays or higher power armature relays
  • Software drivers support the most common programming environment
  • Optional connector blocks offer reliable measurement from robust, high-pincount interconnects
  • Easy programming and control with soft front panels and Keysight Command Expert

Customer Values

  •  Connect multiple points for high-pin-count applications
  •  Get the performance you need with high-speed 1000 μs reed relay switches or up to 60 W per channel
  •  Work in your programming environment of choice and reduce development time
  •  Fast and easy module installation and configuration

Easy Setup ... Test ... and Maintenance

Hardware Platform


The matrix switch modules are PXI compliant with a J1 connector and can be used in PXI chassis with cPCI (J1), PXI-1 (J1 only), or PXIe hybrid slot connectors.

The PXI format offers high performance in a small, rugged package. It is an ideal deployment platform for many automated test systems. In addition, a wide array of complementary PXI products are currently available, such as multimeters, waveform generators, local oscillators, digitizers, and RF switch modules.

Software Platform

IO Libraries

Keysight IO Libraries Suite offers fast and easy instrument connections and now extends to modular instruments. IO

Libraries Suite 16 adds support for PXI, helping you display all of the modules in your system, whether they are PXI, PXIe, or AXIe, as well as view information about installed software. In addition, the new version allows you to more easily find the right driver and start module soft front panels directly with Keysight Connection Expert.


Keysight provides instrument drivers that work with your choice of software, saving time and preserving software and hardware investments. Keysight modular instruments come with IVI-COM, IVI-C, and LabVIEW software drivers that work in the most popular test and measurement development environments including LabVIEW, MATLAB, LabWindows/CVI, Visual Studio C, C++, C#, VEE, and Visual Basic.

With a broad selection of drivers already included, any Keysight PXI matrix switch can be swapped out, replaced, or upgraded with the latest version, requiring only minimal software adjustments.

Easy software integration

In addition, application code examples are included for LabVIEW, LabWindows/CVI, Visual Studio C, C++, C#, Visual Basic, and MATLAB, providing switch set-up and basic functionality.

These application code examples are easily modified to quickly integrate the switch module into your measurement system.

Software Applications

Keysight soft front panels provide easy-to-use instrument communications. The PXI matrix switch graphical user interface guides developers through module setup so users can quickly configure the switch states. Switch control is also possible through the wide selection of instrument program interfaces.

Specification and Characteristic Summary

Following is a summary of specifications and characteristics for the Keysight PXI matrix switches. More detailed specifications and characteristics for each module are featured later in this document.


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Column Control DTX