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SCXI-1126
SCXI-1126, 8-Channel, Frequency Input Module
Actual item may vary if no part number is provided on quote request.
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" 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
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May 2025
Gregg Flecki**** Verified Buyer
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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 SCXI-1126 Frequency Input Module
The SCXI-1126 (Part Number: 776572-26) is an isolated Frequency Input Module from the SCXI Series by NI. All eight channels on this module have a frequency-to-voltage conversion circuit with programmable input range, threshold, hysteresis, and filtering. The channels have ten selectable input frequency ranges from 250 kHz-128 kHz. Every channel additionally has four selectable, 4-pole lowpass filters with cut-off frequencies from 1Hz-1 kHz. The output voltages are multiplexed onto one channel of a DAQ instrument. Thus, the user can scan and obtain numerous frequency and analog input signals within one high-speed scan operation. The NI SCXI-1126 is suitable for isolating frequency generating sensors, and other types of analog and digital periodic signal sources. The device is equipped with a 50-pin male ribbon cable rear connector and 32-pin male DIN C front I/O connector.
This Frequency Input Module operates with digital and analog input signals to 250 V maximum. The SCXI 1126 is fully software programmable, which allows the user to configure the frequency input range, threshold level, hysteresis level, and output filtering for every channel. The input stage of every channel is separate from the other channels and from the chassis, to 250 Vrms maximum. Every channel is additionally safe from input overvoltages, to 250 Vrms maximum while powered on or off. The isolated analog input stage is comprised of a trigger circuit that compares the input waveform to a user-programmed threshold and hysteresis. The NI device is run using the NI-DAQmx driver software which is compatible with software packages/application development environments (ADEs) such as LabVIEW, LabWindows/CVI, or Measurement Studio. The device hardware can be configured using the Measurement & Automation Explorer tool.
Since there are low bandwidths on the output filters, the user must wait about three seconds after modifying the settings to enable the channels to stay still prior to the user making a precise measurement. Also, NI-DAQ automatically queries the module to decide when the module outputs are settled. The NI device measures 1.2 x 6.8 x 8.0 in. in physical dimensions.
SCXI-1126 Obsolete Status has been announced by National Instruments, but the module will still be available for purchase and repairs by Apex Waves.
| Model | SCXI-1126 |
|---|---|
| Manufacturer | National Instruments |
| Part Number | 776572-26 |
| Type | Frequency Input Module |
| Channels | 8 |
| Maximum Frequency | 128 kHz |
| Input Signal | Up to 250 V |
| I/O Connectors | 50-pin male ribbon cable rear connector and 32-pin male DIN C front I/O connector |
| Dimensions | 1.2 by 6.8 by 8.0 in. |
| SCXI-1126 Manual | User Manual and Maintenance Manual Available for Download |
| Price | Contact a sales representative for a quote. |
Associated part numbers for SCXI-1126:
National Instruments SCXI-1126 Frequently Asked Questions
Question: How long is the calibration interval for the SCXI-1126?
Answer: The calibration interval for the SCXI-1126 is 1 year.
Question: What is the overvoltage protection of the NI SCXI-1126?
Answer: The overvoltage protection of the NI SCXI-1126 is 250 Vrms, powered on or off.
Question: Which type of input coupling does the SCXI-1126 have?
Answer: The SCXI-1126 has DC input coupling.
Question: What is the value of the output short-circuit protection on the NI SCXI-1126?
Answer: The output short-circuit protection on the NI SCXI-1126 is for an indefinite duration.
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