NI PXI-2556

The National Instruments PXI-2556 is a dual 4x1 high-frequency multiplexer switch module suited for routing signals from DC to 2.5 GHz in 75 Ω RF applications. It can switch up to 30 Vrms or 500 mA, at a maximum power rating of 10 W. The multi-bank architecture of the NI PXI-2556 makes it ideal for test systems that require parallel operations such as the stimulus/response testing of video RF devices such as tuners. The module also features excellent insertion loss, voltage standing-wave ratio (VSWR), and isolation parameters to minimize signal degradation; its onboard relay-count-tracking feature can be used to predict relay lifetime and reduce unexpected system downtime.

Note: The bandwidth specification of a switch module, which is not an absolute specification, is determined by vendor standards. Although higher frequency signals can be routed through this switch module, they will encounter more degradation than those at lower frequencies. In order to determine the best switch module for your application review the insertion loss, VSWR, and isolation specifications of the product for the bandwidth of your application. For more information on choosing the right RF switch for your application, review the ‘Guide to Selecting and RF Switch’ linked in the 'Resources' section of this page.

Additional Product Information

Related Information

• Calculate Attenuation for Your Application
• For tutorials, webcasts, and other content on RF switching, visit NI RF Switches Home

System Assurance Programs

Reduce your setup time and total cost of ownership, and get a system you can use out of the box with National Instruments system assurance programs. System assurance programs include:

• Installation and integration test of all individual hardware
• Courtesy installation of system driver sets and application development environments
• Three-year warranty and calibration coverage
• Custom documentation plus a custom restore and startup utility

This service is only available for PXI, NI CompactRIO, and NI Compact FieldPoint systems.

• Learn More About System Configuration and Deployment Services
• Customize Your NI CompactRIO System
• Customize Your NI Compact FieldPoint System
• Customize Your PXI System
• Talk to an Expert About Custom System Configurations

Extended Warranties

National Instruments designs and manufactures all products to minimize failures, however unexpected failures can still occur. Extended warranties provide a fixed economical price at the time of system purchase, covering any repair costs for up to three years. In addition, they offer the following benefits:

• Significant cost savings compared to individual repair incidents
• Fault location, diagnostics, and repair by NI any time the system product fails
• All parts and labor costs covered as well as any adjustments needed to restore the hardware to manufacturing specifications

For more information about your warranty options:

• Learn More About Warranty Services
• Talk to an Expert About Extended Warranties
• View Warranty Repair Policies

Calibration

NI recognizes the need to maintain properly calibrated devices for high-accuracy measurements. NI provides manual calibration procedures, services to recalibrate your products, and automated calibration software to calibrate many NI measurement products.

• Learn More About Calibration Services

Training

NI training is the fastest, most certain route to productivity with NI tools and successful application development.

• Learn More About NI Training and Certification
• Find a Course Near You and View Schedules

Repair Services

Return your registered product under warranty at no additional labor and parts cost. NI offers fault location, diagnostics, and repair any time the system fails as well as any adjustments needed to restore the hardware to manufacturing specifications.

• Learn More About Repair Services
• Contact NI to obtain a Return Material Authorization (RMA) form and shipping instructions.
• View your RMA support request status online.
• Register your product.

Technical Support

ni.com/support