Academic Company Events NI Developer Zone Support Solutions Products & Services Contact NI MyNI

NI PCI-8431/8 (RS485 and RS422)

High-Performance 8-Port Serial Interface for PCI

Configure Page for: Print PDF Rich Text
  • Compatible with Windows and LabVIEW Real-Time OSs
  • High-speed DMA interface minimizes CPU overhead
  • Flexible standard and nonstandard baud rates from 57 baud to 3,000,000 baud
  • Memory mapped to prevent I/O resource conflicts
  • 128 B transmit and receive FIFOs; full multiprocessor and hyperthreading support
  • Includes converter cable (SCSI-68 to eight DB-9 male connectors)


The NI PCI-8431/8 is a high-performance, 8-port serial interface board for high-speed communication with RS485 or RS422 devices at rates of up to 3 Mbit/s. High-performance RS485 and RS422 interfaces are available in 2-, 4-, and 8-port versions. The PCI-8431/8 offers flexible baud rates for data transmissions between 57 bit/s and 3 Mbit/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. Through the hyperthreading and multiprocessor support, you can take advantage of the latest PC technology for higher speeds and better efficiency. National Instruments also offers easy-to-use powerful software that significantly reduces your development time for systems that use serial communication with the PCI-8431/8.

Specifications Documents

Specifications Summary

General
Product Name PCI-8431/8
Product Family Serial
Form Factor PCI
Part Number 779148-01
Operating System/Target Windows
LabVIEW RT Support Yes
Voltage 5 VDC
Current 1300 mA
Source Internally Powered
Serial Standard Compatibility RS-422
Port Information
Number of Ports 8
Max Cable Length 1.2 km
I/O FIFO Buffer Size 128 B
Max Device Connections / Port 31
Interrupt Sharing Between Ports Yes
Direct Memory Access (DMA) Yes
Physical Specifications
Length 14.5 cm
Width 10.7 cm
I/O Connector 68-pin male SCSI-II type
Minimum Operating Temperature 0 °C
Maximum Operating Temperature 55 °C

NI PCI-8431/8 Complete Package

Each NI PCI-8431/8 requires:

NI PCI-8431/8 Software

Roll over icons above to learn why you need each item in the package.

NI PCI-8431/8 and Accessories

Hardware Subtotal: $ 800
NI PCI-8431/8 - 779148-01 Qty $ 800 each
 
Optional Accessories Hide
RS485/RS422 Null Modem Cable (1m) - 183283-01
Select length:
Qty $ 27 each
Package Price: $ 800
Add to Cart >>
Guarantee your price for 30 days (learn more) Instant Quote
You need software to interface with your hardware and to collect, analyze, present, and store your measurements. This board is compatible with a variety of programming languages, including LabVIEW, C/C++, Visual Basic, and .NET. LabVIEW provides the easiest integration with all of your NI hardware and is recommended to maximize your hardware investment.

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

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