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July 2025
NI-9401
NI-9401, 8 Digital I/O Channels, DSUB Front Connector, C Series Digital Module
Actual item may vary if no part number is provided on quote request.
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Expert Insights for the NI-9401
"The NI-9401 is a multi-configurable digital input/output module. It utilizes CompactRIO technology and can be programmed with the LabVIEW FPGA module. This is perfect for implementing custom, high speed digital communication protocols. This device can be an excellent addition to any digital CompactRIO or CompactDAQ system. This device offers transient isolation between the I/O channels and the system backplane."
- Chris B.
LabVIEW Trained
In-House Technician
Andrew Gar**** Verified Buyer
" Amazing to work with and had my order within 1 week after purchasing with all NI certs and data that were needed. "
March 2025
Said Sai**** Verified Buyer
" Competent contact for highly specialized components. The support team is very knowledgeable. Many thanks for the help and the fast shipping! "
January 2025
Bob C**** Verified Buyer
" Jason was able to get our emergency situation taken care of quickly and professionally. "
May 2025
Gregg Flecki**** Verified Buyer
" Great service and great products. This is my 2nd time using Apex Waves, truly impressed. "
January 2025
Carol Zimme**** Verified Buyer
" Very responsive and helpful, competitive pricing. Good source! "
July 2025
Andrew Gar**** Verified Buyer
" Amazing to work with and had my order within 1 week after purchasing with all NI certs and data that were needed. "
March 2025
Said Sai**** Verified Buyer
" Competent contact for highly specialized components. The support team is very knowledgeable. Many thanks for the help and the fast shipping! "
January 2025
Bob C**** Verified Buyer
" Jason was able to get our emergency situation taken care of quickly and professionally. "
May 2025
Gregg Flecki**** Verified Buyer
" Great service and great products. This is my 2nd time using Apex Waves, truly impressed. "
January 2025
Expert Insights for the NI-9401
"The NI-9401 is a multi-configurable digital input/output module. It utilizes CompactRIO technology and can be programmed with the LabVIEW FPGA module. This is perfect for implementing custom, high speed digital communication protocols. This device can be an excellent addition to any digital CompactRIO or CompactDAQ system. This device offers transient isolation between the I/O channels and the system backplane."
- Chris B.
LabVIEW Trained
In-House Technician
National Instruments NI-9401 C Series Digital Module
The NI-9401 (Part Numbers: 779351-01 and 782401-01) is a C Series Digital Module manufactured by National Instruments. This bidirectional digital module can be used with any cDAQ or cRIO chassis. It is equipped with 2 ports, each of which can be individually configured for either input or output. These ports contain 8 digital I/O channels. The NI-9401 can be used to implement a range of custom digital systems, such as pulse generation, digital communication protocols, counters/timers, and more. The difference between the two part numbers of the module is that part number 782401-01 is conformal coated, while part number 779351-01 is not.
Every channel of the NI-9401 Module has 60 VDC of channel-to-earth ground isolation and features 5 V/TTL compatibility, 8 Bidirectional Channels, and 100 ns maximum I/O propagation delay. With reconfigurable I/O (RIO) innovation (CompactRIO only), it is possible to utilize the LabVIEW FPGA Module to program the NI-9401 module for executing custom, fast counter/clocks; computerized correspondence conventions; pulse’s creation; and more.
On this C Series module, there is the chance to take repetition or period estimations. The counter measures and returns the period data of a signal. The NI-9401 backs a couple of frequency estimation strategies relying upon the settings set by the client. It provides the current time frame estimation esteems once the antithetical is analyzed. The estimation revere is part of the quantity of full times of the signal to-gauge estimated and furthermore the length of these full periods in the number of the 100 MHz antithetical time base.
The power consumed from the chassis by the module is a maximum of 580 mW when in active mode and a maximum of 1 mW when in sleep mode. The thermal dissipation, at 70 °C, is also a maximum of 580 mW or 1 mW in active or sleep mode respectively.
Equipped with a DSUB front connector, the NI Digital Module weighs 5.1 oz. It has a recommended operating temperature range of -40 °C to 70 °C and a storage temperature range of -40 °C to 85 °C. When operational, the noncondensing humidity range spans from 10% to 90%. When not in use, the noncondensing humidity range for storage conditions is 5% to 95%. These environmental specifications are in accordance with the IEC 60068-2-1, IEC 60068-2-2, and IEC 60068-2-78 standards.
| Model | NI-9401 |
|---|---|
| Manufacturer | National Instruments |
| Part Numbers | 779351-01 and 782401-01 |
| Type | Digital Module |
| Digital I/O | 8 Bidirectional Channels |
| Maximum Update Rate | 100 ns |
| Front Connector | DSUB |
| Digital I/O Logic Levels | 5V TTL |
| Supported Hardware Platform | C Series |
| Current Flow Direction | Sinking Input, Sinking Output, Sourcing Input, Sourcing Output |
| Digital I/O Isolation | 60 VDC Ch-Earth Ground Isolation |
| Operating Temperature | -40 °C to 70 °C |
| Storage Temperature | -40 °C to 85 °C |
| Enclosed? | Yes |
| Weight | 5.1 oz. (145 g) |
| NI-9401 Manual | User Manual and Maintenance Manual Available for Download |
| Price | Request a Quote for Pricing |
Associated part numbers for NI-9401:
National Instruments NI-9401 Frequently Asked Questions
Question: Why does the NI-9401 have two part numbers? Are there any differences between the modules?
Answer: Part number 779351-01 is not conformal coated, while part number 782401-01 is conformal coated.
Question: Where can I find the pinout for the NI-9401?
Answer: The pinout, along with other official NI documentation, can be found under the "Manuals & PDFs" tab.
Question: Does the NI-9401 have counter compatibility?
Answer: Yes, the Digital Module has CompactDAQ counter compatibility.
Question: What is the maximum update rate of the C Series Module?
Answer: The maximum update rate of the NI-9401 is 100 ns.
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