Pci 6251
Overview
Product sourcing insights & recommendations
The National Instruments PCI-6251 is officially Obsolete/Discontinued, signaling a major market shift toward PCI Express (PCIe) and PXI Express (PXIe) architectures. While it remains a critical component for maintaining legacy test systems, new designs and modernization efforts are moving toward the NI PCIe-6351 (X Series), which offers superior timing and synchronization.
The market for the PCI-6251 has largely moved to refurbished and surplus channels, where it continues to hold value for specialized industrial and research applications. The comprehensive report below provides a deep dive into its technical specifications, lifecycle status, and recommended migration paths for modern systems.
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Ni Pcie 6351 X Series Daq Card
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PCI-6221 779418-01 68Pin DAQ Card Data Acquisition Card with Cable for NI National Instruments
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Sources & References
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PCI-6251 - NI
www.ni.com
16 AI (16-bit, 1.25 MS/s), 2 AO (2.8 MS/s), 24 DIO PCI Multifunction I/O Device—The PCI-6251 offers analog I/O, correlated digital I/O, two 32-bit counters/timers, and analog and digital triggering. The device delivers low-cost, reliable DAQ capabilities in a wide range of applications from simple applications in laboratory automation, research, design verification/test, and manufacturing test.
PCI/PCIe/PXI/PXIe/USB-6251 Specifications
www.ni.com
PCIe-6251 - NI
www.ni.com
16 AI (16-Bit, 1.25 MS/s), 2 AO (2.8 MS/s), 24 DIO PCIe Multifunction I/O Device—The PCIe-6251 offers analog I/O, correlated digital I/O, two 32-bit counters/timers, and analog and digital triggering. The device delivers low-cost, reliable DAQ capabilities in a wide range of applications from simple applications in laboratory automation, research, design verification/test, and manufacturing test.
NI 6251 Device Specifications - National Instruments
bholmesqub.github.io
NI USB-6251 Mass Termination Pinout ... Refer to the NI Trademarks and Logo Guidelines at ni.com/trademarks for information on NI trademarks. Other product and · company names mentioned herein are trademarks or trade names of their respective companies. For patents covering NI · products/technology, refer to the appropriate location: Help»Patents in your software, the patents.txt file on your media, or the · National Instruments Patent Notice at ni.com/patents. information about the NI 6251, refer to the M Series User Manual available at ni.com/ 5 Some motherboards reserve the x16 for graphics use. For PCI Express guidelines, refer to ni.com/ and third-party legal notices in the readme file for your NI product.
PCI-6251 Product Certifications - NI
www.ni.com
Home Support Documentation Product Certifications PCI-6251 Product Certifications
PXI-6251 NI Multifunction I/O Module | In Stock Ships Today
www.apexwaves.com
The device has a recommended warm-up time of 15 minutes, and should be calibrated at least once every 2 years. The standard 3U PXI device weighs 7.8 oz. It has a recommended operating temperature range of 0 ºC to 55 ºC. For additional specifications and the pinout for the NI PXI-6251, look under the "Manuals & PDFs" tab. The NI PXI-6251 (Part number: 779631-01, 191325F-13L, 779117-01, 191325E-03L, 191325D-03) PXI Multifunction I/O Module has 8 differential or 16 single-ended analog input channels, two analog output channels, and 24 digital I/O channels. It has a 16-bit analog input resolution. This PXI Multifunction I/O Module is ideal for manufacturing test, research, laboratory automation, and design verification/test. Both high-voltage and sensor features can be added to this module with SCXI or SCC signal conditioning modules. When the PXI-6251 module is used with the compatible NI-DAQmx driver software, there are many benefits. NI-DAQmx has features such as automatic timing, triggering, and synchronization routing to simplify difficult applications, numerous free software downloads to help the user begin their application, one programming interface for analog output, analog input, digital I/O, and more. Question: What types of counter measurements can the counters/timers on the PXI-6251 perform? Answer: The counters/timers on the Multifunction I/O Module have the following measurements available: two-edge separation, edge counting, period, pulse, and semi-period. ... DAQ-MULTIFUNCTION-I-O-28MIO29-AND-SIMULTANEOUS-MULTIFUNCTION-I-O-28SMIO29-DEVICES-CALIBRATION-PROCEDURE.PDF ... All of our products are covered by our Apex Waves Warranty.