National Instruments DIN-Rail Mount Terminal Block for 25-Pin D-SUB Modules DIN-rail screw-terminal block

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National Instruments · CompactDAQ / CompactRIO

DIN-Rail Mount Terminal Block for 25-Pin D-SUB Modules

The NI 781081-01 is a DIN-rail terminal block that connects a 25-pin female D-SUB interface to screw terminals. NI identifies it as the 25-Pin D-SUB to Screw Terminal accessory for CompactDAQ and CompactRIO systems.

ManufacturerNational Instruments

ModelDIN-Rail Mount Terminal Block for 25-Pin D-SUB Modules

Part Number781081-01

Product TypeDIN-rail screw-terminal block

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NI part number781081-01

Connector25-pin female D-SUB

Wire terminationScrew terminals

MountingHorizontal DIN-rail mount

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Overview

Product overview

Key product information and technical features.

This accessory provides screw-terminal wiring connections in a DIN-rail format rather than serving as a measurement module. NI's official product designation is 25-Pin D-SUB to Screw Terminal.

NI lists this block for selected C Series D-SUB modules. A cable is required between the module and the DIN-rail terminal block; select the cable using the module-specific accessory guide.

25-pin female D-SUB connection.
Screw-terminal wire termination.
Horizontal DIN-rail mounting configuration.

Verified specifications

Technical data

Verified product specifications.

Manufacturer part number	781081-01
D-SUB connector	25-pin female
Termination type	Screw terminal
Mounting configuration	DIN rail, horizontal mount

Condition & included items

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Condition

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Included

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Compatibility

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National Instruments

Manufacturer

CompactDAQ / CompactRIO

Measurement-system platforms

781081-01

DIN-rail D-SUB-to-screw-terminal accessory

Compatibility

Listed for the 25-pin D-SUB versions of NI-9201, NI-9221, NI-9401, NI-9421, NI-9472 and NI-9475.

Use the module-specific NI accessory guide to confirm the cable and connection arrangement; this is not a direct front-mount terminal block.

Manuals & software

Technical resources

Manuals, software and technical resources for this model.

25-Pin D-SUB to Screw TerminalOfficial Product Page · ni.com

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C Series with D-Sub Terminal: I/O Cable & Accessory GuideCompatibility And Accessory Guide · ni.com

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FAQ

Product-specific questions

Product-specific answers based on available technical information.

What is the official NI designation for this terminal block?

NI calls part number 781081-01 the 25-Pin D-SUB to Screw Terminal.

Which D-SUB C Series modules does NI list for this block?

NI lists NI-9201, NI-9221, NI-9401, NI-9421, NI-9472 and NI-9475 in the 25-pin D-SUB accessory table.

Is a separate connection cable required?

Yes. NI states that DIN-rail terminal blocks require a cable. The 25-pin D-SUB table lists SH25F-25M, part number 192568-01, and SHDB25F-DB25M Low Profile, part number 154742-01.