Anonymous Verified Buyer
" Very responsive and helpful, competitive pricing. Good source! "
July 2025
NI-9425 In Stock | Ships in 3-5 Days
NI-9425, 24 V, D-SUB or Spring Terminal Connection Options, C Series Digital Module
Rated 4.6/5 | 9 ratings
Actual item may vary if no part number is provided on quote request.
✔ 2 Year Warranty Included
✔ Free Ground Shipping
✔ NIST Calibration Available
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
National Instruments NI-9425 C Series Digital Module
The NI-9425 (Part Numbers: 779139-01, 785044-01, 780176-01, and 784718-02) is a C Series Digital Module, which comes with 12 V/24 V digital I/O logic levels, 32 digital channels (Sinking Input), and 7 μs maximum update rate. This NI device is equipped with either a spring terminal (part number 785044-01) or D-SUB (part number 779139-01) front connector. Part numbers 780176-01 and 784718-02 also feature D-SUB connectors and are conformal coated.
This Digital Module can be directly connected to a range of industrial switches, transducers, and devices by using industrial logic levels and signals. Every digital input line can handle logic values up to 24 V, and the module offers isolation between the input and output banks from channel to earth ground. The NI-9425 utilizes sinking inputs, which provide a path to COM when the connected sourcing device either applies voltage or drives current to the digital input.
There are multiple safety guidelines in place for the NI-9425 in order to handle hazardous voltages. For both the spring terminal and D-SUB versions of the device, the channel-to-channel has a maximum voltage of ±60 V for up to 8 channels simultaneously. For the simultaneous channel-to-channel of all the channels, this maximum voltage lowers to ±30 V. The module can be connected to sourcing-output devices that are two, three, or four wired. When a voltage or current within the input ON range is applied to the digital input by the sourcing-output device, the NI-9425 channel registers as ON. When the module drives a current or applies a voltage that falls inside the input OFF range to digital input, the channel is recorded as OFF.
The spring terminal fitted model of the NI-9425 weighs 5.7 oz while its D-SUB counterpart weighs slightly less at 5.2 oz. It has a recommended operating temperature range of -40 to 70 °C, a storage temperature range of -40 to 85 °C, non-condensing operating and storage humidity ranges of 10 to 90% RH and 5 to 95% RH respectively, and random and sinusoidal operating vibrations of 5 grms and 5 g respectively–all at a frequency range of 10 to 500 Hz.
| Model | NI-9425 |
|---|---|
| Manufacturer | National Instruments |
| Part Numbers | 779139-01, 785044-01, 780176-01, 784718-02 |
| Type | Digital Module |
| Digital Input Channels | 32 |
| Digital I/O Logic Levels | 12V, 24V |
| Maximum Update Rate | 7 us |
| Maximum Power Consumption | 410 mW (Active Mode), 0.5 mW (Sleep Mode) |
| Spring Terminal Wiring Gauge | 26 AWG to 16 AWG |
| Current Flow Direction | Sinking Input |
| Operating Temperature Range | -40 °C to 70 °C |
| Storage Temperature Range | -40 °C to 85 °C |
| Front Connector | D-Sub or Spring Terminal (Part Number Dependent) |
| Supported Hardware Platform | C Series |
| Enclosed? | Yes |
| Weight | Spring Terminal: 5.7 oz (163 g) D-SUB: 5.2 oz (147 g) |
| Warranty | 2-3 Year Warranty |
| NI-9425 Manual | User Manual and Maintenance Manual Available for Download |
| Price | Request a Quote Today for Pricing |
Associated part numbers for NI-9425:
National Instruments NI-9425 Frequently Asked Questions
Question: What are the differences between the various part numbers for the NI-9425?
Answer: The NI-9425 has several types of connectivity options, as well as some versions with conformal coating. Part number 779139-01 has D-SUB front connectors. Part number 785044-01 has spring terminal front connectors. Part numbers 780176-01 and 784718-02 have D-SUB front connectors and are also conformal coated. In addition, the spring terminal version has 250 V RMS Ch-Earth isolation, whereas the DSUB version has 60 V DC Ch-Earth isolation.
Question: Which accessories are required for the NI-9425?
Answer: The C Series Digital Module requires either the NI 9940 Backshell Kit for the spring-terminal version or the NI 9923 Front-mount DSUB to Screw-Terminal for the DSUB versions. Another option for the DSUB versions is the DIN-Rail 37-Pin, Spring-Terminal Connector Block with 1 m Shielded Female to Male Cable.
Question: Which hardware platforms support the NI-9425 module?
Answer: The Digital Module is supported by the CompactDAQ and CompactRIO hardware platforms. However, it cannot be utilized in a CompactDAQ Chassis for counter operations.
Question: What is the update/transfer time for the NI-9425?
Answer: The update/transfer time is 8 μs maximum for the cRIO-9151 Chassis and 7 μs maximum for all other chassis.
Delivery:
No hassle return policy.
Dedicated customer service team.
Payment:
Receive Price & Availability Today!
Ask About Our Tiered Calibration Levels
Option & Modules:
Confirm Your Requirements or Versions
Cost & Lead Time Available Upon Request for Service
Repair Evaluation: $150
Common Typos:
Why Buy From Apex Waves:
