NI PXI-8433/2 (RS485/422) High-Performance, Isolated 2-Port Serial Interface

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  • Port-to-port and port-to-PC isolation: 60 VDC continuous (CAT I), 2000 V withstand (Vrms/5 s)
  • 15,000 V ESD protection (human body model)
  • High-speed DMA interface that minimizes CPU overhead
  • Compatible with Windows and LabVIEW Real-Time OSs
  • 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
  • Configure Complete PXI System
The NI PXI-8433/2 serial interface offers all the features of high-performance NI PXI-843x modules plus high-voltage digital, port-to-port isolation. The PXI-8433/2 features high-speed communication with RS485 and RS422 devices at rates of up to 3 Mbit/s and offers configurable baud rates for data transmissions between 57 baud and 3,000,000 baud 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. With hyperthreading and multiprocessor capabilities, 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 using serial communication with the PXI-8433/2.

Specifications Documents

Specifications Summary

General
Product Name PXI-8433/2 RS422/485 Serial Interface, Isolated 2-Port
Product Family Serial
Form Factor PXI Platform
PXI Bus Type PXI Hybrid Compatible
Part Number 779744-01
Operating System/Target Real-Time , Windows
LabVIEW RT Support Yes
Voltage 5 Vrms
Current 750 mA
Source Internally Powered
Power Requirement for +5V Rail 750 mA
Slot Two Module No
Module Width 1
MXI Compatible Yes
Isolation Type Port-Port Isolation
Serial Standard Compatibility RS-422
Port Information
Number of Ports 2
Max Cable Length 1.2 km
I/O FIFO Buffer Size 128 B
Max Device Connections / Port 31
Handles RTS/CTS Handshake Lines Yes
Interrupt Sharing Between Ports Yes
Direct Memory Access (DMA) Yes
Physical Specifications
Length 16 cm
Width 10 cm
Height 1 cm
I/O Connector 9-pin D-Sub (DB-9)
Minimum Operating Temperature 0 °C
Maximum Operating Temperature 55 °C

NI PXI-8433/2 Packages

To use the NI PXI-8433/2 , you need all items in the diagram below. Select Option 1 if you already own a PXI System, or Option 2 if you do not already own a chassis, controller, or software.

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PXI System

2 Cables

NI PXI-8433/2

Chassis

Controller

Software

NI PXI-8433/2 and Accessories Only
NI PXI-8433/2 - 779744-01 Qty $ 597 each
Cables - Shielded
Qty $ 28 each
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