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NI TBX-68
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National Instruments · NI DAQ

NI TBX-68

The NI TBX-68 is an unshielded termination accessory for connecting field wiring to compatible 68-pin NI DAQ devices. It provides 68 screw terminals and DIN rail mounting.

ManufacturerNational Instruments
ModelTBX-68
Part Number777141-01
Product TypeUnshielded screw-terminal block
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Free Shippingfull policy linked
30-Day Warrantystandard coverage
30-Day Returnspolicy applies
Technical Supportmodel & compatibility help
Connections68 screw terminals
Cable interfaceOne 68-pin male SCSI connector
MountingStandard 35 mm DIN rail
Part number777141-01
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Overview

Product overview

Key product information and technical features.

The TBX-68 provides field-wire termination between a compatible NI DAQ device and its 68-pin cable. A protective plastic base supports installation on a standard DIN rail.

Terminal numbers map directly to the DAQ connector pins. Signal assignments therefore come from the connected device's pinout rather than a universal TBX-68 signal assignment.

  • Screw-terminal access to all 68 I/O connections.
  • Male SCSI connector for connection to the appropriate 68-pin cable.
  • Protective plastic base with DIN rail mounting hardware.
Verified specifications

Technical data

Verified product specifications.

Screw terminals68
I/O connectorOne 68-pin male SCSI connector
ShieldingUnshielded
Dimensions12.8 × 12.5 × 6.0 cm
Weight251 g
Wire gauge12–30 AWG
Terminal tightening torque0.8 N·m
Operating temperature0 to 70 °C
Input voltage restrictionDo not exceed 30 Vrms, 42 Vpk or 60 VDC; not for measurement Categories II, III or IV.
Condition & included items

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Condition

Confirmed per unit.

Included

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Revision

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Compatibility

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National Instruments

Manufacturer

NI DAQ

Compatible device and device-specific cable

TBX-68

Field-wire termination

Signal mapping

Use the connected DAQ device's pinout.

Select the cable for the exact DAQ device; connector pin count alone does not establish compatibility.
Manuals & software

Technical resources

Manuals, software and technical resources for this model.

NI TBX-68 Product PageProduct Page · ni.com
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NI TBX-68 User GuideUser Guide · docs-be.ni.com
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TBX-68 Dimensional DrawingsDimensional Drawings · ni.com
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TBX-68 Pinout DetailsTechnical resource
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NI DAQ Multifunction I/O Cable and Accessory CompatibilityTechnical resource
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Shipping, warranty & returns

Commercial terms

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Shipping
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Warranty
30-Day Warranty. Standard coverage applies.
Returns
30-Day Returns. Return policy applies.
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FAQ

Product-specific questions

Product-specific answers based on available technical information.

Where do I find the TBX-68 signal pinout?

Use the pinout for your connected DAQ device. The TBX-68 maps each terminal directly to the corresponding connector pin.

Is the TBX-68 shielded?

No. NI identifies it as an unshielded screw-terminal accessory.

Can it mount on a DIN rail?

Yes. Its attached clip supports a standard 35 mm DIN rail.

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