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National Instruments · NI C Series

NI 9939

The NI 9939 is a connector backshell accessory for 16-position C Series terminal connections. NI identifies separate screw-terminal and spring-terminal part numbers, so the exact variant should be confirmed before selection.

ManufacturerNational Instruments

ModelNI 9939

Part Number192692-01 · 785082-01

Product Type16-position connector backshell

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Accessory typeConnector backshell

Terminal positions16

Screw-terminal variant192692-01

Spring-terminal variant785082-01

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Overview

Product overview

Key product information and technical features.

The NI 9939 fits at the field-wiring connection of supported C Series modules. It is a backshell accessory rather than a measurement module; NI lists the screw-terminal version as a strain-relief and operator-protection accessory.

NI also uses the model designation cRIO-9939. Its certification page distinguishes screw-terminal part number 192692-01 from spring-terminal part number 785082-01; the catalog record does not identify which variant is represented.

Backshell enclosure for a 16-position terminal connector.
Screw-terminal version provides strain relief and operator protection on supported C Series connections.
Part number 192692-01 is paired with the NI 9975 screw-terminal block in NI's accessory guide.

Verified specifications

Technical data

Verified product specifications.

Product type	Connector backshell
Supported connector positions	16 positions
Screw-terminal backshell part number	192692-01
Spring-terminal backshell part number	785082-01

Condition & included items

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Compatibility

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National Instruments

Manufacturer

NI C Series

Module family served by the connection accessory

NI 9939

16-position connector backshell

Compatibility

For screw-terminal part number 192692-01, NI lists the NI 9975 terminal block and the NI 9217, NI 9224, NI 9228, NI 9422, NI 9436, and NI 9485 modules in its 16-position accessory grouping.

Confirm the backshell part number and module terminal style; the catalog record does not establish the screw-terminal or spring-terminal variant.

Manuals & software

Technical resources

Manuals, software and technical resources for this model.

cRIO-9939 Official Product PageProduct Page · ni.com

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cRIO-9939 Product Certifications and Variant IdentificationProduct Certifications · ni.com

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C Series Screw-Terminal Cable and Accessory GuideAccessory Compatibility Guide · ni.com

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FAQ

Product-specific questions

Product-specific answers based on available technical information.

Are NI 9939 and cRIO-9939 names used for this accessory?

Yes. NI's cRIO-9939 certification page identifies the accessory as the NI 9939 backshell.

Which part number identifies the screw-terminal version?

NI lists 192692-01 for the screw-terminal backshell and 785082-01 for the spring-terminal backshell. Confirm the physical item's part number before choosing between them.

Which terminal block is paired with screw-terminal part number 192692-01?

NI's screw-terminal accessory guide pairs it with the NI 9975 16-position screw-terminal block, part number 196741-01.