NI PXI-2555

The National Instruments PXI-2555 is a 4x1 high-frequency terminated 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 internal termination of the NI PXI-2555, which helps prevent high-power reflections that arise from open channels on the module, makes it ideal for use in video RF applications where such reflections can damage the source. The module also provides users with excellent insertion loss, voltage standing-wave ratio (VSWR), and isolation parameters to minimize signal degradation; you can use the onboard relay-count-tracking feature 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 an RF Switch’ linked in the 'Resources' section of this page.

Additional Product Information

Related Information

• Guide to Selecting an RF Switch
• Swtich Selection Guide
• Calculate Attenuation for Your Application
• For tutorials, webcasts, and other content on RF switching, visit NI RF Switches Home

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