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National Instruments · PXI

PXI-2597

The NI PXI-2597 is a 26.5 GHz, 50 Ω terminated 6x1 (SP6T) RF multiplexer for PXI systems. Internal termination helps limit reflections from open channels.

ManufacturerNational Instruments
ModelPXI-2597
Part Number778572-97
Product TypeTerminated RF multiplexer switch module
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Topology6x1 (SP6T), terminated
Bandwidth26.5 GHz
Impedance50 Ω nominal
ConnectionsSeven SMA jacks
Form factor3U, three-slot PXI/cPCI module
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Overview

Product overview

Key product information and technical features.

The PXI-2597 routes RF and microwave signals through a terminated multiplexer topology. NI identifies passing high-order harmonics from PXI RF upconverters and routing multiple sources to PXI RF downconverters as relevant uses.

Onboard relay count tracking supports relay-life assessment and maintenance planning.

  • Internal termination helps prevent reflections associated with open channels.
  • Onboard relay count tracking.
  • Electromechanical, non-latching relays.
Verified specifications

Technical data

Verified product specifications.

Switch topologyTerminated 6x1 (SP6T)
Bandwidth26.5 GHz
Characteristic impedance50 nominal Ω
Insertion loss at frequencies ≤26.5 GHz<0.7"},{"evidence_ids":["EV-BULK-5377-60A33E4C57"],"label":"VSWR at frequencies ≤26.5 GHz","status":"VERIFIED","unit":"—","value":"55 dB
Average termination power at 25 °C1 W per channel; 3 W total
RF carry power at frequencies ≤26.5 GHz25 W
Relay operate/release time15; additional settling time may be required ms
Recommended cycle speed5 channels/s
I/O connectors7 SMA jacks
Module size3U, three-slot PXI/cPCI
Condition & included items

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National Instruments

Manufacturer

PXI

Modular instrumentation platform

PXI-2597

Terminated RF multiplexer

Driver evidence

NI-SWITCH 21.3 lists PXI-2597 among supported RF multiplexer modules.

Reserve three slots and check termination-power limits. NI recommends against switching active RF signals.
Manuals & software

Technical resources

Manuals, software and technical resources for this model.

PXI-2597 SpecificationsSpecifications · ni.com
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PXI-2597 OverviewUser Manual · ni.com
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NI-SWITCH 21.3 ReadmeTechnical resource
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Shipping, warranty & returns

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Warranty
30-Day Warranty. Standard coverage applies.
Returns
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FAQ

Product-specific questions

Product-specific answers based on available technical information.

Can the PXI-2597 switch active RF signals?

NI recommends against it: relay actuation momentarily leaves the channel unterminated, which can expose some RF sources to damaging reflections.

Can one PXI-2597 route a differential signal?

Its 1-wire multiplexer topology is for single-ended switching, not a differential pair.

Which manufacturer part number identifies this model?

NI lists part number 778572-97 for the PXI-2597.

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