National Instruments TB-2643 Dual Front-Mount 4x64 Matrix Terminal Block
  • National_Instruments_TB_2643_View1_20199613012
  • National_Instruments_TB_2643_View2_20199613012
  • National_Instruments_TB_2643_View3_20199475014
  • National_Instruments_TB_2643_View4_20199475014

National Instruments TB-2643 Dual Front-Mount 4x64 Matrix Terminal Block

Part Number: 191981B-02L, 779056-07

Have a quote from somewhere else? Click Here
Stock # 82061-8
Quick Quote
Sell Yours
Repair Quote
  • More Info
  • Tech Specs
  • Additional Photos
  • Datasheets / Manuals 
  • View It Live Request 
Contact Us
National Instruments PXI-2532 High-Density Multiconfiguration Matrix Switch Modules

  • 512-Crosspoint Matrix in a Single 3U PXI Slot
  • 2,000 Cycles/S
  • Onboard Relay Count Tracking
  • Sixteen 2x16 Matrix Banks for Custom Matrix Configurations
  • Multiple-Module Synchronization with Hardware Triggers


The National Instruments PXI-2532 High-Density Multiconfiguration Matrix Switch Modules are 512-crosspoint, high-speed matrix switch modules. With the ability to create up to a 4x2176 or 8x1088 one-wire matrix in a single PXI chassis and even larger configurations with multi-chassis solutions, an NI 2532 is ideal for high-channel-count automated test configurations. Featuring compact reed relays with switching speeds up to 2,000 cycles/s and the ability to synchronize with instruments, these modules provide maximum throughput in a test system for signals up to 100 VDC/100 VAC or 0.5 A.

The NI 2532 modules are general-purpose matrices used to route referenced or differential signals. Through software, you can control the modules to connect any row to any column. One of the key advantages of these matrices is you can adapt them to your switching needs. You can configure them in many different matrix configurations by using NI terminal blocks listed. For example, you can create a 4x128 one-wire matrix by using the TB-2640 terminal block with an NI 2532 module. You can easily transform the same module into an 8x64 one-wire matrix by using a TB-2641 terminal block. Because the NI 2532 modules are built with sixteen 2x16 matrices, you can also create matrix sizes outside the standard terminal block configurations. Other one-wire configurations include a 16x32 matrix or four independent 4x32 matrices. In a two-wire configuration, you can build a dual 4x32 or 16x16 matrix.

An NI 2532 counts relay closures on each of its 512 relays. Relay counts are incremented each time a relay is actuated. You can programmatically retrieve the counts, which are stored on board the module, and use them for predictive maintenance to reduce unexpected system downtime.

These modules maximize throughput in automated test applications by the use of scanning. Scanning improves throughput by downloading a list of up to 32,000 connections to the switch and cycling through the list using an event (trigger) without any interruption from the host processor. The user can most efficiently implement scanning by mating an NI 2532 with an instrument such as the NI PXI-4070 6 1/2-digit FlexDMM, which issues a trigger after each measurement.

The user can choose from several solutions for your signal connections. Terminal blocks provide connectivity to strain-relieved 0.050 in. pitch headers ideal for ribbon cable or to 68-pin VHDCI connectors with cabled breakout accessories. You also can use mass interconnect solutions from industry leaders such as Virginia Panel and MAC Panel. Contact NI for details on these products or for information on creating your own custom connectivity solutions.

Product Family: PXI-2531, PXIe-2531, PXI-2532, PXIe-2532

Important Notice: Please note that any additional items included with this equipment such as accessories, manuals, cables, calibration data, software, etc. are specifically listed in the above stock item description and/or displayed in the photos of the equipment. Please contact one of our Customer Support Specialists if you have any questions about what is included with this equipment or if you require any additional information.

Contact Us


Contact Us

Item Images

Click a thumbnail to view larger image:

National Instruments PXI-2532 High-Density Multiconfiguration Matrix Switch ModulesNational Instruments PXI-2532 High-Density Multiconfiguration Matrix Switch Modules

Contact Us

View It Live

View equipment LIVE - Before you buy!

InstraView™ Equipment Inspection

Buying used equipment doesn't always have to be a shot in the dark. We know there are plenty of differences when it comes to used equipment and quite often, choosing between different pieces is difficult, especially when the equipment is not sitting right in front of you.

Well, what if you were able to see a piece of equipment before you purchased it? Not just a picture from the manufacturer's website, but the actual piece of equipment you would receive.
With InstraView™, we move you one step closer to inspecting the equipment you're interested in without having to wait for the equipment to show up at your door.

InstraView™ works in your web browser and allows you to view the actual piece of equipment you're interested in before purchasing. You can zoom in close to see the labels with the serial number or zoom out to see the overall condition of the equipment.

It's like having the store come to you!

InstraView Request Form

To get started:

  1.   Fill in the request form below
  2.   We'll send you an email letting you know exactly when your piece of equipment will be available for viewing

Item to Inspect: 82061-8 - National Instruments TB-2643 Dual Front-Mount 4x64 Matrix Terminal Block

All you need is a web browser (ie. Microsoft Internet Explorer or Netscape) and Sun's Java Runtime Environment installed. If you need to install the Sun Java Runtime, you may download the latest Java SE Runtime Environment (JRE)