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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)
Data Sheet  |   Configure System popup

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 $ 249.00

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 $ 109.00
Step 3: Select Optional Accessories
Part
Number		 Description Est Ship Days Glossary Definition US Dollars
(change) 		Qty
Shielded
192568-01 SH25F-25M-1 (1m) - 25-Pin Female to Male Shielded I/O Cable, 1 m 5 - 10 $ 29.00
192568-02 SH25F-25M-2 (2m) - 25-Pin Female to Male Shielded I/O Cable, 2 m 5 - 10 $ 29.00
Step 4: Add to Cart or Get a Quote

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Specifications Documents


Specifications Summary

General 
Form FactorCompactDAQ, CompactRIO
Operating System / TargetWindows, Real-Time
Measurement TypeDigital
Isolation TypeCh-Earth Ground Isolation
Analog Input 
Number of Channels0
Analog Output 
Number of Channels0
Digital I/O 
Number of Channels8 DIO
TimingHardware
Maximum Clock Rate10 MHz
Logic LevelsTTL
Maximum Input Range0..5.25 V
Maximum Output Range0..5.25 V
Supports Handshaking I/O?Yes
Supports Pattern I/O?Yes
Counter/Timers 
Number of Counter/TimersProvided by chassis
Timing/Triggering/Synchronization 
TriggeringDigital
Triggers cDAQ ChassisYes

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  • Installation and integration test of all individual hardware
  • Courtesy installation of system driver sets and application development environments
  • Three-year warranty and calibration coverage
  • 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

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  • 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:

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Technical Support

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