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NI 9401

8 Ch, 5 V/TTL High-Speed Bidirectional Digital I/O Module

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  • 8-channel, 100 ns ultrahigh-speed digital I/O
  • 5 V/TTL, sinking/sourcing digital I/O
  • -40 to 70 °C operating range
  • Industry-standard 25-pin D-Sub connector
  • Hot-swappable operation
  • Bidirectional, configurable by nibble (4 bits)
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The National Instruments NI 9401 is an 8-channel, 100 ns bidirectional digital input module for any NI CompactDAQ or CompactRIO chassis. You can configure the direction of the digital lines on the NI 9401 for input or output by nibble (4 bits). Thus, you can program the NI 9401 for three configurations - eight digital inputs, eight digital outputs, or four digital inputs and four digital outputs. With reconfigurable I/O (RIO) technology (CompactRIO only), you can use LabVIEW FPGA to program the NI 9401 for implementing custom, high-speed counter/timers, digital communication protocols, pulse generation, and much more. Each channel is compatible with 5 V/TTL signals and features 1,000 Vrms transient isolation between the I/O channels and the backplane.

The NI 9934 (or other 25-pin D-Sub connector) is required for use with the NI 9401 module. The module includes a screw-terminal connector with strain relief as well as a D-Sub solder cup backshell for creating custom cable assemblies.

Data Sheet | View Pricing and Purchasing Information »

View Diagram

Select one of the following options for product configuration and pricing:

Select Module and Accessories Below » Configure and Price a Complete CompactDAQ/CompactRIO System »
 
Module Accessories   Chassis, Controllers, Modules Software & Services
Step 1: Verify Device and Quantity Selection
Part
Number		 Description Est Ship Days Glossary Definition US Dollars
(change) 		Qty
779351-01 NI 9401 1 - 2 $ 269

Each NI 9401 requires: 1 Connectivity Accessory

NI 9401 Connectivity Accessory
Step 2: Select Connectivity Accessory
Part
Number		 Description Est Ship Days Glossary Definition US Dollars
(change) 		Qty
Screw Terminals
779104-01 NI 9934 25pin D-Sub connector kit
NI Recommended		 1 - 2 $ 109
Step 3: Select Optional Accessories
Part
Number		 Description Est Ship Days Glossary Definition US Dollars
(change) 		Qty
Connectivity Accessories
781081-01 25-pin DSUB to Screw Terminal Block, DIN Rail Mount 5 - 10 $ 59
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Specifications Documents


Specifications Summary

General
Product Name NI 9401
Product Family Industrial I/O
Form Factor CompactDAQ , CompactRIO
Operating System/Target Windows , Real-Time
Measurement Type Digital
Isolation Type Ch-Earth Ground Isolation
RoHS Compliant Yes
Analog Input
Channels 0 , 0
Single-Ended Channels 0
Differential Channels 0
Analog Output
Channels 0
Digital I/O
Bidirectional Channels 8
Input-Only Channels 0
Output-Only Channels 0
Number of Channels 8 , 0 , 0
Timing Hardware
Max Clock Rate 10 MHz
Logic Levels TTL
Supports Handshaking I/O? Yes
Supports Pattern I/O? Yes
Maximum Input Range 0 V , 5.25 V
Maximum Output Range 0 V , 5.25 V
Counter/Timers
Counters 0
Physical Specifications
Length 9 cm
Width 2.3 cm
I/O Connector 25-pin D-Sub
Minimum Operating Temperature -40 °C
Maximum Operating Temperature 70 °C
Minimum Storage Temperature -40 °C
Maximum Storage Temperature 85 °C

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System Assurance Programs

Reduce your setup time and total cost of ownership, and get a system you can use out of the box with National Instruments system assurance programs. System assurance programs include:

  • Installation and integration test of all individual hardware
  • Courtesy installation of system driver sets and application development environments
  • Extended warranty and calibration coverage for up to five years
  • Custom documentation plus a custom restore and startup utility

This service is only available for PXI, NI CompactRIO, and NI Compact FieldPoint systems.

Extended Warranties

National Instruments designs and manufactures all products to minimize failures, however unexpected failures can still occur. Extended warranties provide a fixed economical price at the time of system purchase, covering any repair costs for up to three years. In addition, they offer the following benefits:

  • Significant cost savings compared to individual repair incidents
  • Fault location, diagnostics, and repair by NI any time the system product fails
  • All parts and labor costs covered as well as any adjustments needed to restore the hardware to manufacturing specifications

For more information about your warranty options:

Calibration

NI recognizes the need to maintain properly calibrated devices for high-accuracy measurements. NI provides manual calibration procedures, services to recalibrate your products, and automated calibration software to calibrate many NI measurement products.

Training

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Repair Services

Return your registered product under warranty at no additional labor and parts cost. NI offers fault location, diagnostics, and repair any time the system fails as well as any adjustments needed to restore the hardware to manufacturing specifications.

Technical Support

ni.com/support

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