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PXI-2531, 1-Wire, 512 Crosspoint, PXI Matrix Switch Module
Rated 4.9/5 | 7 ratings
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
" 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 PXI-2531 PXI Matrix Switch Module
The National Instruments PXI-2531 (Part Number: 778572-31) is a high-density, 1-wire, 512-crosspoint PXI matrix switch module designed for automated test systems requiring a high-channel-count configuration. The NI PXI-2531 utilizes compact, high-speed reed relays, which are capable of switching at up to 4000 cycles per second (0.25 ms relay operate time). Users can configure the module into multiple topologies, including a 1-wire dual 4 × 64 matrix, 1-wire dual 8 × 32 matrix, 1-wire 8 × 64 matrix, and 1-wire 4 × 128 matrix.
The NI PXI-2531 provides a maximum switching or carry current of 0.5 A and a maximum switching power of 10 W per channel. When terminated with 50 Ω, this module features a typical bandwidth of ≥20 MHz, with channel-to-channel crosstalk less than -70 dB at 10 kHz and 100 kHz, less than -58 dB at 1 MHz, and less than -38 dB at 10 MHz. The switch module is equipped with two 150-position Samtec ERM8 Series I/O connectors.
The PXI-2531 can simultaneously drive up to 40 relays in a PXI chassis and up to 64 relays in a PXI Express chassis. The relay operate and release times are both 0.25 ms, ensuring fast switching performance. This matrix switch module receives trigger signals through PXI trigger lines (0 to 7) at a minimum pulse width of 150 ns and outputs trigger signals via the same PXI trigger lines with a programmable pulse width ranging from 1 µs to 62 µs.
| Model | PXI-2531 |
|---|---|
| Manufacturer | National Instruments |
| Part Number | 778572-31 |
| Type | PXI Matrix Switch Module |
| Crosspoints | 512 |
| Banks | 1, 2 |
| Rows | 4, 8 |
| Columns | 32, 64, 128 |
| Relay Type | Reed Relays |
| Relay Operate Time | 0.25 ms |
| Operating Temp Range | 0°C to 55°C |
| Storage Temp Range | -40°C to 70°C |
| Dimensions | 8.5 x 0.8 x 5.1 in. |
| Weight | 1 lb. |
| Warranty | 2-3 Year Warranty |
| I/O Connectors | Two 150-Position Samtec ERM8 Connectors |
| Price | Request a Quote |
Associated part numbers for PXI-2531:
National Instruments PXI-2531 Frequently Asked Questions
Question: What is the switch bandwidth of the NI PXI-2531?
Answer: The switch bandwidth is typically ≥20 MHz when terminated with 50 Ω, though actual performance may vary based on system conditions.
Question: What is the scan rate of the PXI-2531?
Answer: The PXI Matrix Switch Module has a maximum scan rate of 4,000 cycles per second, based on its 0.25 ms relay operate time.
Question: What type of relays does the Switch Module have?
Answer: The PXI-2531 has reed relays.
Question: What type of I/O connectors are on the PXI-2531?
Answer: The Matrix Switch Module has two 150-pos. Samtec ERM8 series I/O connectors.
| Accessory Type | Model Name | Part Number |
|---|---|---|
| Front Mounted Terminal Block | TB-2648 (4x128) | 781131-01 |
| TB-2649 (4x64) | 781131-02 | |
| TB-2650 (8x64) | 781131-03 | |
| TB-2651 (8x32) | 781131-04 | |
| Cable | SHC68-68 | 191945-01 (1 m) |
| 191945-02 (2 m) | ||
| Remote Terminal Block | TBX-68 | 777141-01 |
PXI-2531 PDF Manuals
NI-PXI-PXIE-2531-SPECIFICATIONS.PDF
PXI-PXIE-2531-2532-2532B-LETTER-OF-VOLATILITY.PDF
PXI-2531 Diagrams
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