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NI (National Instruments) PXIe-8431/8 8-Port, RS485/RS422 PXI Serial Interface Module
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NI (National Instruments) · PXI Express

PXIe-8431/8

The NI PXIe-8431/8 is an 8-port PXI Express serial interface module for RS485 and RS422 communication. It provides non-isolated serial channels with a maximum baud rate of 3 Mbit/s.

ManufacturerNI (National Instruments)
ModelPXIe-8431/8
Part Number781473-01
Product Type8-Port, RS485/RS422 PXI Serial Interface Module
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Bus ConnectionPXI Express
Isolation TypeNone
Number of Serial Channels8
Supported Serial ProtocolsRS485, RS422
Operating Temperature Range0 °C to 55 °C
Maximum Baud Rate3 Mbits/s
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Overview

Product overview

Key product information and technical features.

The PXIe-8431/8 adds eight RS485/RS422 serial channels to a PXI Express system. The module uses a VHDCI front connection and provides non-isolated communication at a maximum baud rate of 3 Mbit/s.

The interface supports DMA transfers, multithreading, and multiprocessor operation. Selectable 4-wire and 2-wire transceiver modes support full-duplex and half-duplex communication.

  • Eight serial channels with RS485 and RS422 protocol support.
  • PXI Express bus interface with a VHDCI front connection.
  • Maximum baud rate of 3 Mbit/s.
  • Selectable 4-wire and 2-wire transceiver modes for full-duplex and half-duplex communication.
  • DMA transfers, multithreading, and multiprocessor support.
  • Operating temperature range of 0 °C to 55 °C.
Verified specifications

Technical data

Verified product specifications.

Bus ConnectionPXI Express
Isolation TypeNone
Number of Serial Channels8
Supported Serial ProtocolsRS485, RS422
Operating Temperature Range0 °C to 55 °C
Maximum Baud Rate3 Mbits/s
Front Connection TypeVHDCI
Number of Bidirectional Digital Channels8
NI part numbers781473-01
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NI

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PXI Express

Bus Connection

PXIe-8431/8

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Getting Started (NI)Getting Started · ni.com
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Specifications (NI)Specifications · ni.com
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Product Page (NI)Product Page · ni.com
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FAQ

Product-specific questions

Product-specific answers based on available technical information.

How many serial channels does the PXIe-8431/8 provide?

It provides eight serial channels supporting RS485 and RS422 communication.

What is the maximum baud rate?

The specified maximum baud rate is 3 Mbit/s.

Are the serial channels isolated?

No. The PXIe-8431/8 has no isolation.

What bus and front connection does it use?

The module connects to the PXI Express bus and uses a VHDCI front connection.

Does it support both full-duplex and half-duplex communication?

Yes. Selectable 4-wire and 2-wire transceiver modes support full-duplex and half-duplex communication.

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