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From Bob Helsel, Editor of the PXI Newsletter:


Welcome to the April 2018 edition of the PXI Newsletter.  Our intent is to educate and inform you about how the PXI standard is being used in modular test systems for a wide variety of industries.

In the New PXI Products section, we are showcasing PXI products recently released by members of the PXI Systems Alliance.

Our thanks go to PXI Systems Alliance, the sponsor of this month's issue.

Visit http://www.pxisa.org for more information.

 

Reducing Cost by Using the Right Connectivity Method

for your PXI Test System



Submitted by MAC Panel

Planning and development of PXI based automated test equipment (ATE) can present many challenges, from the design stages all the way through to test deployment. As the design and build progresses, changes become costlier at each stage. Furthermore, attempting to change aspects related to the connectivity between test equipment and device under test can be detrimental and could even force a redesign of the entire system. 

There are several considerations when selecting an interconnect solution for your PXI based ATE, from relatively simple choices of which style of contact to use (pin and socket or surface to surface) to more complex decisions such as choosing to use a wired approach or a reduced wired solution that use PCBs or flex circuit connections. With a PXI based test system it is also paramount that thought be given to maintaining the modularity and flexibility that the PXI platform provides. A connectivity solution that ignores these fundamental requirements will inevitably lead to increased cost over the life of the system.

Modularity:  

PXI has revolutionized the design of test systems by providing modular solutions that meet the technical and cost objectives in a wide range of applications. During the earlier years of PXI most customers would simply select the PXI instrumentation and then select a direct cabled solution to connect to the test fixture. However, this method can ultimately lead to a higher cost of test in many applications. Individual cables need to be manufactured or modified to meet specific needs and are often used for only one test or specific DUT. When a change needs to be made or a new product is introduced a whole new set of cables needs to be produced. This can be costly and can also increase the time to market as it involves design, manufacturing and inspection time. So how do we decrease the amount of time and cost associated with direct wiring?

Two options are available. The first is the use of a modular system using high density connectors with mating cables in which the connector is cabled to the PXI instruments. At this point a cabled solution terminated to a modular rugged connector would be selected for each DUT being tested. 


Read more >>

 

Thanks to all our readers.
Bob Helsel, Editor
www.pxisa.org

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New PXI Products

The PXI platform continues its explosive growth with many new product introductions. New products introduced in the last three months include (listed in the order received):

Keysight PXI Avionics Databus Modules
Avionics interface modules from Avionics Interface Technologies, offered through Keysight, enable connectivity between your PXI test systems solution to DUT’s with aviation industry standard buses. These modules are capable of simulation, monitoring, record and play back of bus traffic enabling test and verification of avionics equipment data communication capabilities.

Teledyne SP Devices 14-bit Arbitrary Waveform Generator with 2 GS/s Sample Rate
The SDR14TX AWG offers a complement to the previously released ADQ14 and ADQ7 digitizer families and can be used either for stand-alone operation or in system-level solutions with well-matched signal generation and data acquisition performance.

Advanced Testing Technologies PXI/PXIe Inserts
The Advanced Testing Technologies PXI Insert allows the user to easily incorporate PXI/PXIe instruments into an existing VXI chassis.

NI PXIe-1095 Chassis with 58 W Power and Cooling per Slot

The PXIe-1095 chassis offers 58 W of power and cooling in every slot, 50 percent higher than all previous NI PXI Express chassis.

Read more >>

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