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National Instruments PXIE-2531 Matrix switch module
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National Instruments · PXI Express

PXIE-2531

The NI PXIe-2531 is a 512-crosspoint, 1-wire matrix switch module for high-channel-count automated test systems. Reed relays support switching speeds up to 2,000 cycles/s.

ManufacturerNational Instruments
ModelPXIE-2531
Part Number780587-31
Product TypeMatrix switch module
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Free Shippingfull policy linked
30-Day Warrantystandard coverage
30-Day Returnspolicy applies
Technical Supportmodel & compatibility help
Matrix capacity512 crosspoints
Bus interfacePXI Express
Switching speedUp to 2,000 cycles/s
Relay technologyReed relays
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Overview

Product overview

Key product information and technical features.

Designed for low-current, high-speed signal routing, the PXIe-2531 combines a high-density matrix with hardware-triggered operation. Onboard relay counting supports monitoring of relay usage.

Terminal-block selection determines the supported matrix arrangement. NI specifies four standard 1-wire topologies for this module.

  • 512-crosspoint matrix for high-channel-count routing.
  • Onboard relay counting for relay monitoring.
  • Hardware triggers support deterministic operation.
Verified specifications

Technical data

Verified product specifications.

Crosspoints512
Standard topologies1-wire: 4 × 128, 8 × 64, dual 4 × 64, dual 8 × 32
Maximum switching voltage60 VDC / 30 VACrms, channel-to-channel and channel-to-ground; CAT I
Maximum switching or carry current0.5 per channel A
Maximum switching power10 per channel W
Relay operate time0.25 ms
Module I/O connectorsTwo 150-position Samtec ERM8-series connectors
Operating temperature0 to 55 °C
Condition & included items

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Compatibility

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National Instruments

Manufacturer

PXI Express

Module bus interface

PXIe-2531

Matrix switching module

Connectivity

Select a terminal block matched to the required topology.

Observe voltage, current and 10 W switching-power limits together; not for direct mains connections.
Manuals & software

Technical resources

Manuals, software and technical resources for this model.

PXIe-2531 Product PageProduct Page · ni.com
Open →
NI PXI/PXIe-2531 SpecificationsSpecifications PDF · download.ni.com
Open →
NI Matrix Switch Cable and Accessory Compatibility GuideTechnical resource
Open →
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.

Which terminal blocks configure the standard matrices?

TB-2648: 4 × 128; TB-2649: dual 4 × 64; TB-2650: 8 × 64; TB-2651: dual 8 × 32. All are 1-wire configurations.

Does the module track relay usage?

Yes. The PXIe-2531 provides onboard relay counting for monitoring.

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