Anonymous Verified Buyer
" Very responsive and helpful, competitive pricing. Good source! "
July 2025
TB-2649
TB-2649, 1-wire, dual 4 x 64 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-2649 Terminal Block
The TB-2649 is a Terminal Block (Part Number: 781131-02) from National Instruments. This Terminal Block supports a 1-wire, dual 4 x 64 matrix configuration. The NI TB-2649 is designed to work in conjunction with both the PXI and the PXIe version of the NI-2531. This Terminal Block has 2 front connectors, which are used for cabling to other devices or to control systems. You can use the SHC68-68 Shielded Cable and TBX-68 I/O Connector Block with this Terminal Block.
The two VHDCI front connectors of this shielded accessory are utilized to expose the signal connections. The connection between the TB-2649 and the NI-2531 does not require a cable. This Terminal Block can easily be coupled with the host switching module. Through this Terminal Block, you will be able to configure your NI PXIe/PXI-2531 in a 1-wire topology for high-channel-count systems. The NI TB-2649 can bring ease of connectivity for your high-density switching systems.
| Model | TB-2649 |
|---|---|
| Manufacturer | NI |
| Part Number | 781131-02 |
| Type | Terminal Block |
| Compatible Models | PXI-2531 and PXIe-2531 |
| Configuration | 1-wire, dual 4 x 64 matrix |
| Bandwidth | >11 MHz, typical |
| I/O Connectors | Two, 68-PIn VHDCI |
| Maximum Current | 0.5 A (per channel) |
| TB-2649 Manual | User Manual and Maintenance Manual Available for Download |
| Pricing | Contact a Sales Representative for a quote. |
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