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National Instruments · PXI

PXI-2596

The National Instruments PXI-2596 is a 26.5 GHz, 50 Ω RF multiplexer with two unterminated 6x1 banks. Onboard relay count tracking supports relay-life monitoring.

ManufacturerNational Instruments

ModelPXI-2596

Part Number778572-96

Product TypeRF multiplexer switch module

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TopologyDual 6x1 (SP6T)

Bandwidth26.5 GHz

Impedance50 Ω nominal

TerminationUnterminated

Connections14 SMA jacks

Form factor3U, two-slot PXI/cPCI

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Overview

Product overview

Key product information and technical features.

The PXI-2596 combines two RF multiplexer banks in one PXI module. NI identifies applications including passing high-order harmonics from PXI RF upconverters and routing multiple sources to PXI RF downconverters.

Its onboard relay count tracking provides usage information for planning relay maintenance.

Two 6x1 RF multiplexer banks within one module.
Unterminated switching topology.
Onboard relay count tracking.
Non-latching electromechanical relays.

Verified specifications

Technical data

Verified product specifications.

Topology	Dual 6x1 multiplexer
Switch bandwidth	26.5 GHz
Characteristic impedance	50 nominal Ω
Insertion loss at frequencies ≤26.5 GHz	<0.6"},{"evidence_ids":["EV-BULK-5373-7832D9EF30"],"label":"VSWR at frequencies ≤26.5 GHz","status":"VERIFIED","unit":"—","value":"55 dB
RF carry power at frequencies ≤26.5 GHz	25 W
Relay operate/release time	10 ms
Recommended cycle speed	5 channels/s
I/O connectors	14 SMA jacks
Operating ambient temperature	0 to 55 °C

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National Instruments

Manufacturer

PXI

Modular instrumentation platform

PXI-2596

RF multiplexer switch module

Installation footprint

3U PXI/cPCI module occupying two slots.

NI recommends against switching active RF signals; momentary untermination can expose RF sources to damaging reflections.

Manuals & software

Technical resources

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NI PXI-2596 Product PageProduct Page · ni.com

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NI PXI-2596 Specifications, 374243ESpecifications · download.ni.com

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PXI-2596 Dimensional DrawingsDrawings And CAD · ni.com

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PXI-2596 Dimensional Drawings and CAD ModelsTechnical resource

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FAQ

Product-specific questions

Product-specific answers based on available technical information.

Does the PXI-2596 include internal termination?

No. Its two 6x1 multiplexer banks are unterminated.

How much chassis space does it require?

The module uses a two-slot, 3U PXI/cPCI footprint.

Can it switch active RF signals?

NI recommends against this because switching temporarily leaves the channel unterminated, potentially causing reflections that damage an RF source. Follow the source manufacturer's termination requirements.