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National Instruments SWB-2811 Matrix Module for SwitchBlock

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National Instruments · NI SwitchBlock

SWB-2811

The National Instruments SWB-2811 is an 8×21 reed-relay matrix card for NI SwitchBlock. It requires a SwitchBlock PXI carrier rather than operating as a standalone PXI module.

ManufacturerNational Instruments

ModelSWB-2811

Product TypeMatrix Module for SwitchBlock

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Matrix8 rows × 21 columns

Relay technologyReed

Maximum voltage150 V

Maximum switching current1 A

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Overview

Product overview

Key product information and technical features.

The SWB-2811 fits into the modular SwitchBlock architecture, where relay cards can operate as individual matrices or be combined through the carrier analog bus.

NI identifies SwitchBlock modules in software with A or B suffixes. The catalog record does not establish which configuration this unit represents; confirm the physical label before planning signal access.

8×21 matrix topology.
Reed-relay switching with a 20 W maximum switching-power rating.
Listed as supported hardware in NI-SWITCH 2023 Q1.

Verified specifications

Technical data

Verified product specifications.

Number of rows	8
Number of columns	21
Relay type	Reed
Maximum voltage	150 V
Maximum switching current	1 A
Maximum carry current	1 A
Maximum switching power	20 W
Carrier relay-card slots used	1
Signal connector type	Custom

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-2800

SwitchBlock PXI carrier

SWB-2811

Matrix relay card

Software

NI-SWITCH 2023 Q1 explicitly lists SWB-2811 support.

Confirm the A/B configuration and required carrier before integration.

Manuals & software

Technical resources

Manuals, software and technical resources for this model.

NI SwitchBlock Hardware ArchitectureArchitecture Guide · ni.com

SwitchBlock Modules: Switches Cable and Accessory CompatibilityCompatibility Guide · ni.com

NI-SWITCH 2023 Q1 ReadmeDriver Documentation · ni.com

Programming the NI SwitchBlock in NI-SWITCH and NI-DAQmxTechnical resource

Determining SwitchBlock Relay Drive LimitsTechnical resource

Shipping, warranty & returns

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Warranty

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FAQ

Product-specific questions

Product-specific answers based on available technical information.

Can the SWB-2811 plug directly into a PXI chassis?

No. It requires a PXI Carrier Module for SwitchBlock; it is not a standalone PXI module.

Does the model name identify the A or B configuration?

No. This record identifies SWB-2811 without a suffix. NI documents A and B configurations, so check the unit label or software identification.

Which driver release explicitly lists this model?

NI-SWITCH 2023 Q1 lists SWB-2811 under Matrix Module for SwitchBlock. Check that release's operating-system and application requirements separately.

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