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National Instruments · PXI / PXI Express switch accessories

TB-2627

The NI TB-2627 is a screw terminal block that connects directly to PXI-2527 and PXIe-2527 multiplexer switch modules. It provides signal wiring access and routing for supported multiplexer configurations.

ManufacturerNational Instruments
ModelTB-2627
Part Number779358-01
Product TypeFront-mounted screw terminal block
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30-Day Warrantystandard coverage
30-Day Returnspolicy applies
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Manufacturer part number779358-01
Compatible switch modulesPXI-2527 and PXIe-2527
Signal terminationScrew terminals
Voltage rating300 V, Measurement Category I
Thermocouple supportIntegrated cold-junction compensation sensor
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Overview

Product overview

Key product information and technical features.

The TB-2627 is the wiring accessory for the NI 2527 switch module, rather than the switching module itself. Its front-mounted screw terminals provide access to the multiplexer channels.

For thermocouple scanning, the terminal block includes a cold-junction compensation sensor. NI also documents DMM connections using the HV6-BAN4 cable between the multiplexer-bank common connections and a DMM's banana inputs.

  • Direct front-panel attachment to PXI-2527 and PXIe-2527 modules.
  • Supports 64 × 1 one-wire, 32 × 1 two-wire, and 16 × 1 four-wire configurations.
  • Also supports dual 32 × 1 one-wire and dual 16 × 1 two-wire configurations.
  • Integrated cold-junction sensor supports thermocouple measurements.
Verified specifications

Technical data

Verified product specifications.

Connection typeScrew terminal
MountingDirect front-panel connection to PXI-2527 or PXIe-2527
Rated voltage300 V
Measurement categoryI
Cold-junction compensation sensorIncluded
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National Instruments

Manufacturer

PXI-2527 / PXIe-2527

Host multiplexer switch modules

TB-2627

Front-mounted signal termination and routing accessory

Terminal mapping

Use the installation guide's topology-specific terminal maps when wiring channels.

Rated for Measurement Category I only; do not connect to mains circuits or Category II, III, or IV signals.
Manuals & software

Technical resources

Manuals, software and technical resources for this model.

NI TB-2627 Product PageProduct Page · ni.com
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NI TB-2627 Installation InstructionsInstallation Guide · download.ni.com
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TB-2627 Dimensional DrawingsDimensional Drawings And CAD Resources · ni.com
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How to Connect Signals to the PXI/PXIe-2527Technical resource
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Multiplexer Switch Modules: Cable and Accessory CompatibilityTechnical resource
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Shipping, warranty & returns

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FAQ

Product-specific questions

Product-specific answers based on available technical information.

Which switch modules accept the TB-2627?

NI specifies direct connection to the front-panel I/O connectors of the PXI-2527 and PXIe-2527.

Does the TB-2627 support thermocouple scanning?

Yes. Its integrated cold-junction compensation sensor supports thermocouple measurements through the NI 2527 switching system.

How can the terminal block connect to a DMM?

NI documents the HV6-BAN4 cable, part number 192795-0R2, for connecting a DMM's banana inputs to the common connections of the multiplexer banks.

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