Anonymous Verified Buyer
" Very responsive and helpful, competitive pricing. Good source! "
July 2025
TB-2648 Request for Availability
TB-2648, 1-wire, 4 x 128 matrix, Terminal Block
Rated 4.8/5 | 9 ratings
Actual item may vary if no part number is provided on quote request.
✔ 2 Year Warranty Included
✔ Free 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
NI TB-2648 Terminal Block
The TB-2648 (Part Number: 781131-01) is an accessory for the NI-2531. This Terminal Block supports single-wire, 4 × 128 matrix topology or configuration for the NI-2531 Switch Module. The NI TB-2648 is widely used in the construction of multifunction switching systems. This Terminal Block comes with a 160-position device connector. This connector can easily be mated with the connector of the NI-2531. You can check other variants of this Terminal Block for more choices for configuration.
The TB-2648 allows direct connectivity to the device under test with the help of an appropriate cable. However, you can always incorporate a connecter block between the DUT and the NI TB-2648. This Terminal Block comes with 2 front end connectors. The installation of this accessory is something that can easily be achieved without any additional hardware resources. The TB-2648 Terminal Block is vastly used in industrial applications where high-density switching is required at fast rates.
| Model | TB-2648 |
|---|---|
| Manufacturer | NI |
| Part Number | 781131-01 |
| Type | Terminal Block |
| Compatible Models | PXI-2531 and PXIe-2531 |
| Configuration | 1-wire, 4 x 128 matrix |
| Bandwidth | >10 MHz, typical |
| I/O Connectors | Two, 68-PIn VHDCI |
| Maximum Current | 0.5 A (per channel) |
| Warranty | 2-3 Year Warranty |
| TB-2648 Manual | User Manual and Maintenance Manual Available for Download |
| Pricing | Contact a Sales Representative for a quote. |
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