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NI (National Instruments) PXIe-8431/16 16-Port, RS485/RS422 PXI Serial Interface Module
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NI (National Instruments) · PXI Express

PXIe-8431/16

The NI PXIe-8431/16 is a 16-port PXI Express serial interface module for RS485 and RS422 communication. It supports a maximum baud rate of 3 Mbits/s and has no isolation.

ManufacturerNI (National Instruments)
ModelPXIe-8431/16
Part Number781473-02
Product Type16-Port, RS485/RS422 PXI Serial Interface Module
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Bus ConnectionPXI Express
Isolation TypeNone
Number of Serial Channels16
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-8431/16 adds 16 RS485/RS422 serial channels to a PXI Express system. Its maximum baud rate is 3 Mbits/s, providing a multiport serial interface within the PXI Express platform.

The module uses a VHDCI front connection and is specified for operation from 0 °C to 55 °C. It is non-isolated; check the connection requirements and electrical specifications before integrating it with external equipment.

  • 16 serial channels supporting RS485 and RS422 protocols.
  • PXI Express bus interface.
  • Maximum baud rate of 3 Mbits/s.
  • VHDCI front connection.
  • Operating temperature range of 0 °C to 55 °C.
Verified specifications

Technical data

Verified product specifications.

Bus ConnectionPXI Express
Isolation TypeNone
Number of Serial Channels16
Supported Serial ProtocolsRS485, RS422
Operating Temperature Range0 °C to 55 °C
Maximum Baud Rate3 Mbits/s
Front Connection TypeVHDCI
Number of Bidirectional Digital Channels16
NI part numbers781473-02
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NI

Manufacturer

PXI Express

Bus Connection

PXIe-8431/16

This product

Platform shown as listed by NI. Confirm controller, chassis and software fit for your system with NI before integration.
Manuals & software

Technical resources

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Getting Started (NI)Getting Started · ni.com
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Specifications (NI)Specifications · ni.com
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Dimensional Drawings (NI)Dimensional Drawings · ni.com
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Product Page (NI)Product Page · ni.com
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Shipping, warranty & returns

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Warranty
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Returns
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FAQ

Product-specific questions

Product-specific answers based on available technical information.

Which serial protocols does the PXIe-8431/16 support?

It provides 16 serial channels supporting RS485 and RS422.

What is the maximum baud rate?

The specified maximum baud rate is 3 Mbits/s.

Does the PXIe-8431/16 provide isolation?

No. Its isolation type is listed as none.

What front connection does the module use?

The module uses a VHDCI front connection.

What is the NI part number?

The supplied verified catalog data identifies NI part number 781473-02 for the PXIe-8431/16.

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