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NI PXI-8431/2 (RS485/422)

High-Performance, 2-Port RS485/422 Serial Interface for PXI

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  • Compatible with Windows Vista/Vista x64/XP/XP x64/2000/2003 Server/2003 Server x64/LabVIEW Real-Time
  • High-speed DMA interface minimizes CPU overhead
  • Flexible standard and nonstandard baud rates from 57 b/s to 3,000 Kb/s
  • 128 B transmit and receive FIFOs
  • Memory mapped to prevent I/O resource conflicts
  • Selectable 4- and 2-wire transceiver modes for full- and half-duplex communication
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Data Sheet

The National Instruments PXI-8431/2 is a high-performance, two-port serial interface module for high-speed communication with RS485/RS422 devices at rates of up to 3,000 Kb/s. High-performance RS485 interfaces are available with up to eight ports. The NI PXI-8431/2 offers flexible baud rates for data transmissions between 57 b/s and 3 Mb/s to within 1 percent accuracy for nonstandard baud rates and 0.01 percent accuracy for standard baud rates.

With the high-performance DMA engine, you achieve high throughput with minimal CPU usage. Using memory mapping, you can connect to more communication points without resource conflicts. National Instruments also offers easy-to-use powerful software that significantly reduces your development time for systems using serial communication with the PXI-8431/2.

Data Sheet | View Pricing and Purchasing Information »

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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
778984-01 NI PXI-8431/2 10 - 15 $ 449
Step 2: Select Optional Accessories
Part
Number		 Description Est Ship Days Glossary Definition US Dollars
(change) 		Qty
Shielded Cables
183283-01 RS485/RS422 Null Modem Cable (1m) 5 - 10 $ 25
183283-02 RS485/RS422 Null Modem Cable (2m) 5 - 10 $ 30
183283-04 RS485/RS422 Null Modem Cable (4m) 5 - 10 $ 35
Step 3: Add to Cart or Get a Quote

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Specifications Documents


Specifications Summary

General
Product Name NI 9871 4-port RS482/422 CompactRIO Serial Interface Module
Product Family Serial
Form Factor PXI Platform
PXI Bus Type PXI Hybrid Compatible
Operating System/Target FPGA
LabVIEW RT Support No
Voltage 5.0 V
Current 100.0 mA
Source Additional Power Required
Isolation Type Bank Isolation
Serial Standard Compatibility RS-422 , RS-485
Port Information
Number of Ports 4
I/O FIFO Buffer Size 64.0 B
Max Device Connections / Port 31
Handles RTS/CTS Handshake Lines Yes
Physical Specifications
Length 7.900 cm
Width 8.900 cm
Height 2.200 cm
I/O Connector 10-position modular jack
Minimum Operating Temperature -40.0 °C
Maximum Operating Temperature 70.0 °C

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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
  • Extended warranty and calibration coverage for up to five years
  • 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

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Select from the following compatible software for the NI PXI-8431/2 (RS485/422).

Graphical Programming Text-Based Programming
Option 1: Select a complete suite of software
Part
Number		 Description Est Ship Days Glossary Definition US Dollars
(change)		 Qty
Pre-configured NI Developer Suite Packages
DS410836 NI Developer Suite Core (English)
NI Recommended		   $ 4,699

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You have selected United States as the country where you will use the product(s) (change).

Option 2: Select any of the following software products
Part
Number		 Description Est Ship Days Glossary Definition US Dollars
(change) 		Qty
LabVIEW Software
776670-35 NI LabVIEW Full Development System for Windows (English) 5 - 10 $ 2,599

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You have selected United States as the country where you will use the product(s) (change).

Option 1: Select a complete suite of software
Part
Number		 Description Est Ship Days Glossary Definition US Dollars
(change)		 Qty
Pre-configured NI Developer Suite Packages
DS410836 NI Developer Suite Core (English)
NI Recommended		   $ 4,699

Guarantee your price for 30 days with an NI Instant Quote (learn more)

You have selected United States as the country where you will use the product(s) (change).

Option 2: Select any of the following software products
Part
Number		 Description Est Ship Days Glossary Definition US Dollars
(change) 		Qty
Application Software
776800-35 LabWindows/CVI Full Development System for Windows 5 - 10 $ 2,599

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You have selected United States as the country where you will use the product(s) (change).


Driver Software

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