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National Instruments · PXI

PXI-2556

The NI PXI-2556 is a 2.5 GHz, 75 Ω RF switch module with dual 4×1 multiplexer topology.

ManufacturerNational Instruments

ModelPXI-2556

Part Number778572-56

Product TypeRF multiplexer switch module

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30-Day Warrantystandard coverage

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Technical Supportmodel & compatibility help

TopologyDual 4×1 multiplexers (dual SP4T)

Frequency rating2.5 GHz

Impedance75 Ω nominal

ConnectionsSMB

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Overview

Product overview

Key product information and technical features.

The PXI-2556 provides two four-channel switching banks, each with a common connection. NI documents channel control through NI-SWITCH connection and disconnection functions.

Dual SP4T routing topology.
Latching electromechanical relays.
PXI trigger lines 0–7 support input and output triggering.

Condition & included items

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Included

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Compatibility

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National Instruments

Manufacturer

PXI/cPCI

Modular platform

PXI-2556

RF switching module

Control

NI-SWITCH channel connection functions

NI recommends against switching active RF signals.

Manuals & software

Technical resources

Manuals, software and technical resources for this model.

NI PXI-2556 SpecificationsSpecifications PDF · download.ni.com

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NI PXI-2556 Dual 4×1 Multiplexer TopologyNI-SWITCH User Manual · ni.com

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NI RF Switch Cable and Accessory CompatibilityTechnical resource

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FAQ

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Product-specific answers based on available technical information.

Is this an eight-to-one multiplexer?

No. The PXI-2556 uses two separate 4×1 banks rather than a single 8×1 topology.

Which connector family does the PXI-2556 use?

NI lists the PXI-2556 in its SMB RF-switch connector group. Consult the official cable compatibility guide before selecting accessories.