Anonymous Verified Buyer
" Very responsive and helpful, competitive pricing. Good source! "
July 2025
779522-01
779522-01, 8 Digital Input, Sinking and Sourcing, C Series, NI-9422 Digital Module
Actual item may vary if no part number is provided on quote request.
✔ 2 Year Warranty Included
✔ Free Domestic 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 779522-01 C Series Digital Module
National Instruments part number 779522-01 is an identifying part number for the NI-9422 a C Series Digital Module. This module supports input voltages up to 60 V and features 8 digital input channels that can operate in sinking or sourcing mode. It includes screw terminal front connectors and achieves a maximum update rate of 250 μs. The Measurement Time parameter determines the duration over which multiple readings of the input signal are averaged. When both the Divisor and Measurement Time values are set, the counter switches to Dynamic Averaging mode. In this mode, the counter calculates measurements based on both the Divisor and Measurement Time settings simultaneously, returning the result of whichever calculation completes first.
The 779522-01 C Series Digital Module offers flexible signal routing capabilities. Users can direct input signals to the counters from any of the module's eight digital input terminals. By configuring counter properties, users can adjust and customize signal routing as needed. The 779522-01 features a low-power sleep mode, although the availability of system-level sleep mode support depends on the chassis where the module is installed. It supports connection to sourcing-output devices, which can drive current or apply voltage to the DI+ or DI– terminals. An example of a sourcing-output device is an open collector PNP transistor.
The 779522-01 digital input channels operate with floating inputs. Each channel includes DI+ and DI– terminals where voltage signals can be connected. The module detects whether the voltage difference between DI+ and DI– exceeds the defined digital logic thresholds. When an external device applies a voltage within the input ON range to the DI terminal, the channel registers as ON. Conversely, if the voltage falls within the input OFF range, the channel registers as OFF. If no device is connected to DI, the channel defaults to OFF.
| Model | 779522-01 |
|---|---|
| Model Name | NI-9422 |
| Part Type | C Series Digital Module |
| Digital Input Channels | 8 |
| Digital I/O Logic Levels | 24V, 48V |
| Maximum Update Rate | 250 µs |
| Front Connector | Screw terminals |
| Input Type | Sinking/sourcing |
| MTBF | 1,220,439 hours at 25 °C;Bellcore Issue 2, Method 1,Case 3, Limited Part StressMethod |
| Power Requirements | 55 mW max |
Associated part numbers for 779522-01:
779522-01 PDF Manuals
Delivery:
Eligible returns may be accepted within 30 days at Apex Waves’ discretion. A 25% restocking fee applies; non-refundable and built-to-order products are excluded.
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:
