Anonymous Verified Buyer
" Very responsive and helpful, competitive pricing. Good source! "
July 2025
TB-2644B Request for Availability
TB-2644B, 8 x 32 matrix, Terminal Block
Rated 4.8/5 | 16 ratings
Actual item may vary if no part number is provided on quote request.
✔ 2 Year Warranty Included
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✔ 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-2644B Terminal Block
Designed to support multiple configurations, the TB-2644B is a Terminal Block for the NI PXIe/PXI-2532B. This shielded Terminal Block enables you to configure your Switch Module as a 1-wire, dual 8 x 32 or 2-wire, 8 x 32 matrix. The NI TB-2644B can effectively connect signals to the Terminal Block through ribbon cable headers. This Terminal Block has an optional protection feature that protects the relays of the associated switch from capacitive loads.
In one configuration, the TB-2644B (Part Number: 782385-09) comes without protection resistors. However, part number 782385-10 can be utilized if you are interested in acquiring a Terminal Block with 100 Ohm protection resistance. This Terminal Block comes with 2 row headers and 2 column headers. For proper cabling and connectivity, it also has a screw-enforced strain-relief bar. The top cover of the NI TB-2644B is removable and must be removed when access to the connection headers is required.
| Model | TB-2644B |
|---|---|
| Manufacturer | NI |
| Part Numbers | 153639-11L, 153639-12L, 782385-09, and 782385-10 |
| Type | Terminal Block |
| Configuration | 1-wire, dual 8 x 32 matrix or 2-wire, 8 x 32 matrix |
| Compatible Models | PXI/PXIe-2532B |
| Connection | Ribbon cable headers |
| Protection | 100 Ohm or 0 Ohm (depending on part number) |
| Warranty | 2-3 Year Warranty |
| TB-2644B Manual | User Manual and Maintenance Manual Available for Download |
| Pricing | Contact a Sales Representative for a quote. |
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