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July 2025
PXI-2501
PXI-2501, 24 Channels, 48-Pin SCSI I/O Connector, PXI Multiplexer Switch Module
Actual item may vary if no part number is provided on quote request.
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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
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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 PXI-2501 PXI Multiplexer Switch Module
The National Instruments PXI-2501 (Part Number: 777696-01, 185101G-01L) is a 1-, 2-, or 4-Wire, 24-Channel, FET based PXI Multiplexer Switch Module. By using different terminal block accessories, the user can configure this Switch Module as a matrix switch or a multiplexer switch. This model is ideal for the fast inspecting of LV signals, as it utilizes FET switches with brief settling times. For deterministic scanning, the PXI-2501 comes equipped with a scan list capable of 1,024 steps as well.
With this model, the user can achieve a maximum scan rate of 15,000 channels/s. For handling I/O connections, the PXI-2501 comes equipped with a 68-pin male SCSI connector. This Multiplexer Switch has dimensions of 21.6 cm × 2.0 cm × 13.0 cm and weighs around 6.1 oz. As far as its trigger characteristics are concerned, this switch can handle 70 ns PXI trigger lines and 500 ns front panel trigger lines. This model can generate output triggers through <0...7> PXI trigger lines and front panel at a 1 μs pulse width.
This switch card is offered in two-wire configuration mode by default. In this mode, the CHx+ and COMx+, similar to the CHx– and COMx– channels, are switched together for the corresponding bank. However, the user can also have this module operated in one-wire, two-wire, and four-wire configurations. In typical conditions, the four-wire mode of the PXI-2501 is considered for resistance measurements. In addition to these modes, the National Instruments PXI-2501 can also be configured as a 2-wire, 4-by-6 crosspoint matrix. To have this module configured in matrix mode quickly, the TB-2606 terminal block is known to be a viable solution.
| Model | PXI-2501 |
|---|---|
| Manufacturer | National Instruments |
| Part Numbers | 777696-01, 185101G-01L |
| Type | PXI Multiplexer Switch Module |
| Banks | 1, 2, or 4 |
| Relay Type | FET Switch |
| I/O Connector | 68-Pin Male SCSI |
| Channels | 6, 12, 24, 48 |
| Switch Bandwidth | 400 kHz |
| Operating Temp Range | 0°C to 50°C |
| Storage Temp Range | -20°C to 70°C |
| Dimensions | 8.5 x 0.8 x 5.1 in. |
| Weight | 6.1 oz. |
| PXI-2501 Manual | User Manual and Maintenance Manual Available for Download |
| Price | Request a Quote |
Associated part numbers for PXI-2501:
National Instruments PXI-2501 Frequently Asked Questions
Question: What type of I/O connector does the PXI-2501 have?
Answer: The module has a 68-pin male SCSI connector.
Question: What is the scan rate of the Multiplexer Switch Module?
Answer: The NI PXI-2501 has a scan rate of 15,000 cycles/s.
Question: What type of wire modes does the PXI-2501 have available?
Answer: The Multiplexer Switch Module has 1-wire, 2-wire, and 4-wire modes.
Question: What is the maximum DC switching voltage and current?
Answer: The NI PXI-2501 has a maximum switching DC voltage of 10 V and a maximum switching current of 3 mA.
| Accessory Type | Model Name | Part Number |
|---|---|---|
| Front Mounted Terminal Block | TB-2606 | 777879-01 |
| Cable | SH68-68-S | 185262-01 (1 m) |
| 185262-02 (2 m) | ||
| 185262-05 (5 m) | ||
| Remote Terminal Block | TBX-68 | 777141-01 |
| TBX-68S | 777716-01 |
PXI-2501 PDF Manuals
NI-PXI-2501-SPECIFICATIONS.PDF
PXI-2501-2503-LETTER-OF-VOLATILITY.PDF
PXI-2501 Diagrams
Driver Downloads for PXI-2501
OS Compatibility: …
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