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National Instruments PXI-2545 RF multiplexer switch module
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National Instruments · PXI

PXI-2545

The National Instruments PXI-2545 is a 2.7 GHz, 4×1 terminated 50 Ω RF multiplexer switch module for the PXI platform. It provides SMA signal connections and built-in 50 Ω termination.

ManufacturerNational Instruments
ModelPXI-2545
Product TypeRF multiplexer switch module
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30-Day Warrantystandard coverage
30-Day Returnspolicy applies
Technical Supportmodel & compatibility help
Topology4×1 multiplexer
Bandwidth2.7 GHz
Impedance50 Ω, terminated
Signal connectorsSMA
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Overview

Product overview

Key product information and technical features.

The PXI-2545 provides a four-to-one RF switching topology in a PXI module. NI identifies this model specifically as a terminated 50 Ω multiplexer with 2.7 GHz bandwidth, distinguishing it from other switching configurations in the PXI-254x family.

Signal connections use SMA connectors. NI also lists the PXI-2545 in its single-ended, 1-wire multiplexer guidance; this topology does not directly support differential signal switching.

  • 4×1 RF multiplexer topology.
  • 2.7 GHz bandwidth with 50 Ω signal impedance.
  • Built-in 50 Ω termination.
  • SMA coaxial signal connections.
Verified specifications

Technical data

Verified product specifications.

PlatformPXI
Switch topology4×1 terminated multiplexer
Bandwidth2.7 GHz
Nominal impedance50 Ω
Signal connector typeSMA
Signal configuration1-wire, single-ended
Condition & included items

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Condition

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Included

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Revision

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Compatibility

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National Instruments

Manufacturer

PXI

Module platform

PXI-2545

Terminated 4×1 RF multiplexer

Software evidence

NI-SWITCH 3.5 lists the PXI-2545 as supported hardware. Verify the intended driver and operating-system combination separately.

Confirm chassis slot support and driver requirements before integration; the 1-wire topology does not directly switch differential pairs.
Manuals & software

Technical resources

Manuals, software and technical resources for this model.

NI-DAQmx 8.5 Readme — PXI-2545 Hardware IdentificationDriver Readme · download.ni.com
Open →
RF Switch and Transfer Switch Cable and Accessory CompatibilityCompatibility Guide · ni.com
Open →
Termination on PXI RF Switch DevicesSupport Article · knowledge.ni.com
Open →
Connecting Differential Signals to a 1-Wire Multiplexer SwitchTechnical resource
Open →
NI-SWITCH 3.5 Readme and Supported HardwareTechnical resource
Open →
Shipping, warranty & returns

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Shipping
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Warranty
30-Day Warranty. Standard coverage applies.
Returns
30-Day Returns. Return policy applies.
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FAQ

Product-specific questions

Product-specific answers based on available technical information.

Does the PXI-2545 include 50 Ω termination?

Yes. NI explicitly identifies the PXI-2545 as a device with built-in 50 Ω termination.

What switching topology and bandwidth does it provide?

The PXI-2545 is a 4×1 terminated 50 Ω multiplexer with 2.7 GHz bandwidth.

Can it directly switch differential signals?

No. NI lists this model in its 1-wire multiplexer guidance, which specifies single-ended switching rather than direct differential switching.

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