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NI 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
  • 1024-step scan list for deterministic scanning
  • Easy instrument synchronization with hardware triggers
  • Fully software programmable
  • Data Sheet  |   Configure System popup

View Diagram

Select one of the following options for product configuration and pricing:

Select Module and Accessories Below »   Configure and Price a Complete PXI System »
 
Module Accessories   Chassis, Controllers, Modules Software & Services
Step 1: Verify Device and Quantity Selection
Part
Number
Description Est Ship Days Glossary Definition US Dollars
(change)
Qty
  NI PXI-2503      
777697-01 Multiplexer
NI Recommended
-- For price, select country  
777697-01 Matrix -- For price, select country  

Each NI PXI-2503 (Multiplexer) requires: 1 Terminal Block

NI PXI-2503 (Multiplexer) Terminal Block
Step 2: Select Terminal Block
Part
Number
Description Est Ship Days Glossary Definition US Dollars
(change)
Qty
Screw Terminals
777878-01 TB-2605 Multiplexing terminal block and analog bus plug kit
NI Recommended
-- For price, select country  
Step 3: Select Optional Accessories
Part
Number
Description Est Ship Days Glossary Definition US Dollars
(change)
Qty
Other
778546-09 NI Switch Executive Development System -- For price, select country  
Software
778546-09 NI Switch Executive Development System + 1 Yr SSP -- For price, select country  
Step 4: Add to Cart or Get a Quote
Step 2: Select Terminal Block
Part
Number
Description Est Ship Days Glossary Definition US Dollars
(change)
Qty
Screw Terminals
777879-01 TB-2606 Matrix terminal block and analog bus plug kit
NI Recommended
-- For price, select country  
Step 3: Select Optional Accessories
Part
Number
Description Est Ship Days Glossary Definition US Dollars
(change)
Qty
Other
778546-09 NI Switch Executive Development System -- For price, select country  
Software
778546-09 NI Switch Executive Development System + 1 Yr SSP -- For price, select country  
Step 4: Add to Cart or Get a Quote

Please select the country where you will use the product(s) so that we can provide you with accurate pricing, availability, and purchasing information

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 µV) for accurate measurements. For automotive-level voltage measurements, the PXI-2503 handles up to 1 A at 30 VDC.

Specifications Documents


Specifications Summary

General 
Form FactorPXI
OS SupportWindows, Real-Time, Linux
LabVIEW RT SupportYes
Switch TypeMatrix, Multiplexer
Relay TypeElectromechanical
ConnectivityTerminal Block
Product CertificationsC-Tick, CAN/CSA, CE, FCC Part 15, IEC, UL - Product Safety
Input Characteristics 
Multiplexer Configurations48x1, 1-wire
24x1, 2-wire
12x1, 4-wire
2 banks of 12x1, 2-wire
4 banks of 6x1, 2-wire
Matrix Configurations4x6, 2-wire
Maximum Switching Voltage DC (Pollution Degree 2)60 VDC
Maximum Switching Voltage AC30 Vrms
Maximum Switching Current1 A
Maximum Carry Current1 A
Maximum Switching Power30 W
Bandwidth10 MHz
Relay Count TrackingNo
Voltage CategoryCAT I
Path Resistance (Typical)1 Ohm
Thermal EMF2 µV
Dynamic Characteristics 
Mechanical Relay Life5 x 107 cycles
Scan Rate200 cycles/s
Timing/Triggering/Synchronization 
Synchronization Bus (RTSI)Yes
TriggeringDigital
External ClockingNo
Physical Specifications 
Length16 cm
Width10 cm
Height2 cm
I/O Connector68-pin male SCSI-II type

System Assurance Programs

Reduce your setup time and total cost of ownership, and get a system you can use out of the box with National Instruments system assurance programs. System assurance programs include:

  • Installation and integration test of all individual hardware
  • Courtesy installation of system driver sets and application development environments
  • Three-year warranty and calibration coverage
  • Custom documentation plus a custom restore and startup utility

This service is only available for PXI, NI CompactRIO, and NI Compact FieldPoint systems.

Extended Warranties

National Instruments designs and manufactures all products to minimize failures, however unexpected failures can still occur. Extended warranties provide a fixed economical price at the time of system purchase, covering any repair costs for up to three years. In addition, they offer the following benefits:

  • Significant cost savings compared to individual repair incidents
  • Fault location, diagnostics, and repair by NI any time the system product fails
  • All parts and labor costs covered as well as any adjustments needed to restore the hardware to manufacturing specifications

For more information about your warranty options:

Calibration

NI recognizes the need to maintain properly calibrated devices for high-accuracy measurements. NI provides manual calibration procedures, services to recalibrate your products, and automated calibration software to calibrate many NI measurement products.

Training

NI training is the fastest, most certain route to productivity with NI tools and successful application development.

Repair Services

Return your registered product under warranty at no additional labor and parts cost. NI offers fault location, diagnostics, and repair any time the system fails as well as any adjustments needed to restore the hardware to manufacturing specifications.

Technical Support

ni.com/support