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July 2025
TB-2631
TB-2631, 1- or 2- Wire Topology, Screw Terminal Connection, Terminal Block for the PXI-2530
Actual item may vary if no part number is provided on quote request.
✔ 2 Year Warranty Included
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" 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
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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 TB-2631 Terminal Block
The National Instruments TB-2631 (Part Number: 778734-01) is a Front-Mounting Terminal Block specifically designed for use with the National Instruments PXI-2530 Switch Module. This Terminal Block can be used to configure the PXI-2530 Switch as a 4 x 16 2-wire matrix or 4 x 32 1-wire matrix. Moreover, this model also offers direct wired connections to the terminal block’s internally existing screw terminals. The NI TB-2631 comes with screw terminals which are used to connect signals to the switch. In addition, screw terminals for the trigger input and output signals are provided.
This Terminal Block can easily be connected to the front connector of the NI PXI-2530. Additionally, two or more such terminal blocks can be utilized for the expansion of the PXI-2530 Switch Module. To hold the unit in its place securely, two screws are provided on the back side of the NI TB-2631 Terminal Block. The user should ensure that these screws are tightened after plugging in the Terminal Block on the front facing connector of the switch.
This model comes with a 16 position connector with communication and power pins. The installation and configuration of this model does not involve cables. The user should keep in mind that this Terminal Block is solely compatible with the PXI-2530 Switch Module. Therefore, no attempt should be made for forceful insertion of the NI TB-2631 in any other switch’s port. For the proper deployment of signal cables and triggering cables, a strain relief bar with screws is also incorporated in this Terminal Block.
The Terminal Block is designed to comply with the following electrical safety standards: IEC 61010-1, EN 61010-1, UL 3111-1, UL 61010B-1, and CAN/CSA C22.2 No. 1010.1.
| Model | TB-2631 |
|---|---|
| Manufacturer | National Instruments |
| Part Number | 778734-01 |
| Type | Terminal Block |
| Compatibility | PXI-2530 |
| Configurations for the PXI-2530 | 4 x 32, 1-Wire Matrix or 4 x 16, 2-Wire Matrix |
| Connectors | Screw Terminals |
| Electromagnetic Emissions Compatibility | EN 55011 Class A at 10 m FCC Part 15A above 1 GHz |
| TB-2631 Manual | User Manual and Maintenance Manual Available for Download |
| Price | Contact a sales representative for a quote. |
Associated part numbers for TB-2631:
National Instruments TB-2631 Frequently Asked Questions
Question: What is the function of the 1-wire reference and the TRIGIN and TRIGOUT terminals?
Answer: On the TB-2631, the 1-wire mode is created for measuring voltage, so the 1-wire reference is the refence voltage for this measurement. The TRIGIN and TRIGOUT terminals offer input and output triggering.
Question: Which instruments are needed to connect the TB-2631 to the PXI-2530?
Answer: To connect the TB-2631 to the PXI-2530, the user needs a 1/8 inch flathead screwdriver, a PXI Chassis, the Terminal Block, and the Switch Module.
Question: Which safety standards does the NI TB-2631 meet?
Answer: The Terminal Block meets the safety standards of the CAN/CSA C22.2 No. 1010.1, IEC 61010-1, EN 61010-1, and UL 3111-1, UL 61010B-1.
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