National Instruments PXI-2503 Low-Voltage Multiplexer/Matrix Relay Switch

National Instruments PXI-2503 Low-Voltage Multiplexer/Matrix Relay Switch

Part Numbers: 184789B-01, 184791B-01, 184789D-01, 184789F-01, 777697-01, 184789E-01

Have a quote from somewhere else? Click Here
Stock # 58804-1
Quick Quote
Sell Yours
Repair Quote
  • More Info
  • Tech Specs
  • Additional Photos
  • Datasheets / Manuals 
  • View It Live Request 
Contact Us
National Instruments PXI-2503 Low-Voltage Multiplexer/Matrix Relay Switch

  • 48x1 (1-Wire), 24x1 (2-Wire), 12x1 (4-Wire) Modes with TB-2605
  • 4x6 (2-Wire) Matrix Mode with TB-2606
  • Fully Software Programmable
  • Easy Instrument Synchronization with Hardware Triggers
  • 1024-Step Scan List for Deterministic Scanning


The National Instruments PXI-2503 performs as a multiplexer or matrix switch. It switches signals up to 60 VDC or 30 Vrms. For low-voltage measurements, such as thermocouple signals, the NI PXI-2503 relays have very low thermal offset (less than 2 •V) for accurate measurements. For automotive-level voltage measurements, the PXI-2503 handles up to 1 A at 30 VDC.

Product Family: PXI-2503, PXI 2503, PXI2503, 777697-01, 77769701, 777697 01

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-2503 Low-Voltage Multiplexer/Matrix Relay Switch

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: 58804-1 - National Instruments PXI-2503 Low-Voltage Multiplexer/Matrix Relay Switch

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)