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PXI-8431-2 Request for Availability
PXI-8431/2, 2-Port, RS-485/RS-422 Serial Protocols, PXI Serial Interface Module
Rated 4.8/5 | 17 ratings
Actual item may vary if no part number is provided on quote request.
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Andrew Gar**** Verified Buyer
" Amazing to work with and had my order within 1 week after purchasing with all NI certs and data that were needed. "
March 2025
Said Sai**** Verified Buyer
" Competent contact for highly specialized components. The support team is very knowledgeable. Many thanks for the help and the fast shipping! "
January 2025
Bob C**** Verified Buyer
" Jason was able to get our emergency situation taken care of quickly and professionally. "
May 2025
Gregg Flecki**** Verified Buyer
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January 2025
Carol Zimme**** Verified Buyer
" Very responsive and helpful, competitive pricing. Good source! "
July 2025
Andrew Gar**** Verified Buyer
" Amazing to work with and had my order within 1 week after purchasing with all NI certs and data that were needed. "
March 2025
Said Sai**** Verified Buyer
" Competent contact for highly specialized components. The support team is very knowledgeable. Many thanks for the help and the fast shipping! "
January 2025
Bob C**** Verified Buyer
" Jason was able to get our emergency situation taken care of quickly and professionally. "
May 2025
Gregg Flecki**** Verified Buyer
" Great service and great products. This is my 2nd time using Apex Waves, truly impressed. "
January 2025
National Instruments PXI-8431/2 PXI Serial Interface Module
The PXI-8431/2 (Part Number: 778984-01) is an elite interface for rapid communication with RS-485 and RS-422 serial protocols. This module offers superior DMA exchanges, allowing the user to choose between 4 and 2-line handset modes to have full and half duplex communication. Serial interfaces additionally show up as standard COM ports to offer similarity with programs that use serial interchanges. The NI PXI-8431/2 is a 2-port module that communicates with RS-485 and RS-422 at rates up to 3,000 kbit/s (3 Mbps). It supports any baud rates from 2 baud up until the maximum supported baud rate of 3000 kbaud. This support is possible because the UART can get within 1.3% of all baud rates in that range.
The PXI-8431/2 ground loops are current moving through the ground line when ground voltage levels contrast between associated gadgets. They are a typical issue in numerous mechanical applications. On RS-485 devices, this issue brings about a typical mode voltage created by the distinction in ground levels or by commotion actuated on the two lines. Confining serial ports eliminate this issue and secures the PC framework in harsh industrial conditions. The NI PXI-8431/2 is a nonisolated board. The power required from the PXI channel of the module, at +5 VDC, is typically 500 mA and 750 mA at a maximum.
Physically, the NI device is equipped with a DB-9 male I/O connector and weighs a total of 134 g. In terms of dimensions, the PXI-8431/2 measures 3.94 x 6.37 in. (100 × 160 mm) in physical dimensions. It has a recommended operating temperature range of 0 to 55 °C, a storage temperature range of –20 to 70 °C. The Serial Interface Module has a noncondensing operating and storage humidity range of 10 to 90% and 5 to 95%, respectively. These environmental specifications were tested in accordance with the IEC-60068-2-1, IEC-60068-2-2, and IEC-60068-2-56 standards.
Apex Waves will continue to Buy, Sell, and Repair End-Of-Life NI Hardware in perpetuity. While the PXI-8431/2 is no longer available from National Instruments, it will remain available with Apex Waves. Request your quote today!
| Model | PXI-8431/2 |
|---|---|
| Part Number | 778984-01 |
| Manufacturer | National Instruments |
| Type | PXI Serial Interface Module |
| Ports | 2 |
| Supported Serial Protocols | RS-422 and RS-485 |
| Maximum Baud Rate | 3,000 kbit/s |
| Isolated? | No |
| I/O Connector | DB-9 Male Connector Type |
| Operating Temperature Range | 0 to 55 °C |
| Storage Temperature Range | -20 to 70 °C |
| Dimensions | 3.94 x 6.37 in.(100 × 160 mm) |
| Weight | 134 g. |
| Warranty | Three Year Warranty |
| PXI-8431/2 Manual | User Manual and Maintenance Manual Available for Download |
| Price | Request a Quote Today for More Information |
Associated part numbers for PXI-8431-2:
National Instruments PXI-8431/2 Frequently Asked Questions
Question: What type of connector is on the PXI-8431/2?
Answer: The Serial Interface Module features a DB-9 male connector.
Question: What is the power requirement for the NI PXI-8431/2?
Answer: The power required is 500 mA (typical), or 750 mA (maximum) at +5 VDC.
Question: What signals is the interface module compatible with?
Answer: The PXI-8431/2 is only compatible with RXD, TXD, GND, RTS, and CTS signals.
Question: Does the PXI-8431/2 have transceiver control?
Answer: The module has RS-485 transceiver control.
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