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National Instruments NI 9949 RJ-50 to screw-terminal adapter terminal block
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National Instruments · C Series strain/bridge input accessories

NI 9949

The NI 9949 is an RJ-50 to screw-terminal adapter for custom wiring to C Series strain/bridge input modules. It is a connectivity accessory, not a PXI Express acquisition module.

ManufacturerNational Instruments
ModelNI 9949
Part Number196809-01
Product TypeRJ-50 to screw-terminal adapter terminal block
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Free Shippingfull policy linked
30-Day Warrantystandard coverage
30-Day Returnspolicy applies
Technical Supportmodel & compatibility help
FunctionRJ-50 signal breakout to screw terminals
Device connection10-pin female RJ-50
Supported device examplesNI 9237 with RJ-50; SCXI-1314T
Operating temperature-40 to 70 °C
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Overview

Product overview

Key product information and technical features.

The NI 9949 provides accessible screw-terminal connections for custom sensor wiring and integration with C Series strain/bridge input hardware.

NI identifies part number 196809-01 as a four-adapter kit. That manufacturer packaging description does not establish the contents of this individual catalog offering.

  • Female RJ-50 connection and female screw-terminal connection.
  • Numbered terminals provide one-to-one breakout of RJ-50 pins 1 through 10.
  • S terminals provide access to the connector shield.
Verified specifications

Technical data

Verified product specifications.

Manufacturer part number196809-01
Back-end connection10-pin female RJ-50
Front-end connection10-pin female screw terminal
Outer dimensions65.6 × 21.3 × 31.5 mm
Weight43 g
Operating temperature-40 to 70 °C
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

C Series strain/bridge input modules

Measurement hardware served by the accessory

NI 9949

RJ-50 screw-terminal wiring interface

CompactDAQ context

NI documents the NI 9949 in CompactDAQ strain and load bundles using RJ-50-connected NI 9237 modules.

Use an RJ-50 cable; NI warns that RJ-45 cables can damage pins 1 and 10.
Manuals & software

Technical resources

Manuals, software and technical resources for this model.

NI-9949 Product PageProduct Page · ni.com
Open →
NI 9949 RJ-50 to Screw-Terminal Accessory User GuideUser Guide · download.ni.com
Open →
NI-9949 Dimensional DrawingsDimensional Drawings And CAD Models · ni.com
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NI-9949 Product CertificationsProduct Certifications · ni.com
Open →
Using a Quarter-Bridge Configuration with NI 9237 and NI 9949Technical resource
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Shipping, warranty & returns

Commercial terms

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Warranty
30-Day Warranty. Standard coverage applies.
Returns
30-Day Returns. Return policy applies.
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CompactDAQ

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FAQ

Product-specific questions

Product-specific answers based on available technical information.

Is the NI 9949 a data acquisition module?

No. NI identifies it as an RJ-50 to screw-terminal adapter for C Series strain/bridge input modules.

Does it provide quarter-bridge completion by itself?

NI's NI 9237 quarter-bridge wiring example using the NI 9949 requires an external precision resistor to complete the bridge circuit.

What cable should connect the accessory to the measurement device?

Use RJ-50, not RJ-45. Consult the device manual for signal assignments.

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