Anonymous Verified Buyer
" Very responsive and helpful, competitive pricing. Good source! "
July 2025
TB-2645B
TB-2645B, 1- or 2-Wire, 16 x 16 Matrix, Terminal Block
Actual item may vary if no part number is provided on quote request.
✔ 2 Year Warranty Included
✔ Free Domestic 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-2645B Terminal Block
The TB-2645B is a Matrix Terminal Block that enables you to configure your National Instruments NI-2532B as a 1-wire, dual 16 x 16 matrix or a 2-wire, 16 x 16 matrix. This Terminal Block comes with ribbon cable headers for connectivity between signals and the module. The NI TB-2645B is a shielded accessory and can be equipped with optional isolation resistors. By incorporating isolation resistors, you can ensure the safety of the reed relays in test or automation systems with capacitive loads.
This Terminal Block can be used with both the PXIe-2532B and the PXI-2532B. However, it cannot be deployed with the NI-2532. The NI TB-2645B is designed for quick and tool-less installation. You can easily attach this Terminal Block to the front connector found on the NI-2532B. A couple of chassis screws are also provided to ensure the secure and safe deployment of the Terminal Block.
| Model | TB-2645B |
|---|---|
| Manufacturer | NI |
| Part Numbers | 153639-21L, 153639-22L, and 782385-11 |
| Type | Terminal Block |
| Compatible Models | PXI-2532B and PXIe-2532B |
| Configurations | 1-wire, dual 16 x 16 matrix and 2-wire, 16 x 16 matrix |
| Shielded | Yes |
| Connection | Ribbon cable headers |
| Dimensions | 4.22 x 0.80 x 4.56 in. |
| Weight | 1 lb. |
| TB-2645B Manual | User Manual and Maintenance Manual Available for Download |
| Pricing | Contact a Sales Representative for a quote. |
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Eligible returns may be accepted within 30 days at Apex Waves’ discretion. A 25% restocking fee applies; non-refundable and built-to-order products are excluded.
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