National Instruments SWB-2814 Reed relay matrix module

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National Instruments · NI SwitchBlock

SWB-2814

The National Instruments SWB-2814 is a 2-wire, 8×9 reed relay matrix module for NI SwitchBlock. It requires a SwitchBlock PXI carrier rather than installing directly as a standalone PXI module.

ManufacturerNational Instruments

ModelSWB-2814

Product TypeReed relay matrix module

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Technical Supportmodel & compatibility help

Topology2-wire, 8 rows × 9 columns

Relay technologyReed

Maximum voltage150 V

Maximum switching current1 A

Carrier requirementPXI-2800 SwitchBlock carrier

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Overview

Product overview

Key product information and technical features.

The SWB-2814 provides an 8×9 matrix with two conductors switched per connection. NI documents the topology for both NI 2814A and NI 2814B variants, including channel naming and variant-dependent pin assignments.

The module belongs to the 281x SwitchBlock family. PXI system integration is through the SwitchBlock carrier; the relay card is not a standalone PXI instrument.

Two-wire matrix routing across eight rows and nine columns.
Reed relay switching with a maximum switching power of 20 W.
Occupies one relay-card slot in the SwitchBlock carrier.

Verified specifications

Technical data

Verified product specifications.

Switching mode	2-wire
Rows	8
Columns	9
Relay type	Reed
Maximum voltage	150 V
Maximum switching current	1 A
Maximum carry current	1 A
Maximum switching power	20 W
Relay-card slots used	1

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National Instruments

Manufacturer

PXI-2800 SwitchBlock carrier

Carrier for PXI system integration

SWB-2814

2-wire 8×9 matrix relay card

Software identity

May appear as NI 2814A or NI 2814B in NI MAX and NI-SWITCH.

Confirm the A/B variant and its pinout before selecting wiring or planning row access.

Manuals & software

Technical resources

Manuals, software and technical resources for this model.

NI 2814 2-Wire 8×9 Matrix TopologyTopology And Pinout · ni.com

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NI SwitchBlock Hardware ArchitectureTechnical Overview · ni.com

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

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FAQ

Product-specific questions

Product-specific answers based on available technical information.

Can the SWB-2814 install directly into a PXI chassis?

No. It requires the PXI Carrier Module for SwitchBlock, identified as PXI-2800 in NI's compatibility guide.

What matrix topology does the SWB-2814 provide?

It provides a 2-wire matrix with eight rows and nine columns. NI's topology documentation covers both the NI 2814A and NI 2814B.

Does this record identify the A or B variant?

No. The catalog identifies SWB-2814 without an A/B suffix or manufacturer part number. Confirm the module label and use the corresponding NI pinout before wiring.