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PCIe-8431-8
PCIe-8431/8, 8 Channel, RS-485/RS-422 Serial Interface Device
Actual item may vary if no part number is provided on quote request.
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" Amazing to work with and had my order within 1 week after purchasing with all NI certs and data that were needed. "
March 2025
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January 2025
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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 PCIe-8431/8 Serial Interface Device
The National Instruments PCIe 8431/8 (Part number: 780592-01) is an 8-Port, PCI Express based Serial Instrument Device. This model offers flexible nonstandard and standard baud rates between 57 baud/sec to 1 Mb/s with 0.01% accuracy for standard baud rates and 1% accuracy for nonstandard baud rates. It has a maximum baud rate of 3000 kbits/s. The NI PCIe 8431/8 can be used with different software infrastructures because it is fully compatible with both the LabVIEW real-time Operating System and Microsoft Windows. This model is a viable solution for a broad range of applications since it permits the user to choose between 4-wire transceiver mode and 2-wire transceiver mode. Thus, the user can configure this device to be used in either full-duplex or half-duplex communication mode.
The NI PCIe-8431/8 comes equipped with one 68-pin VHDCI I/O connector. 1 cable is also provided that interconnects the onboard 68-pin VHDCI port to 8 male DSUB-9 serial ports. The physical dimensions of the board are 4.38 × 6.9 inches, whereas it weighs around 90 g. Thus, the PCIe-8431/8 can easily be deployed in any standard PC. The user needs one unoccupied PCIe or PCI Express Slot. This Serial Interface Device requires no additional power from any external source since it draws current from the PCIe channel. In routine operating conditions, this device requires 200 mA at +3.3 VDC and 190 mA at +12 VDC. However, in some cases, this device may draw current up to its maximum, 750 mA and 220 mA, for the two different voltage power as mentioned above.
The NI device weighs 0.20 lb, and measures 4.38 x 6.9 in. in physical dimensions. It has recommended operating and storage temperature ranges of 0 to 55 °C and –20 to 70 °C respectively, noncondensing operating and storage humidity ranges of 10 to 90% and 5 to 95% respectively. The PCIe-8431/8 can be used with a RS-485 and RS-232 cable of maximum cable lengths 30 m (limited by EMC/surge) and 2500 pF (TIA-EIA-232-F 2.1.4) respectively. The device is designed to comply with safety standards for electrical instruments; standards such as: IEC-60068-2-1 and IEC-60068-2-2.
| Model | PCIe-8431-8 |
|---|---|
| Manufacturer | National Instruments |
| Part Number | 780592-01 |
| Type | Serial Interface Device |
| Standard | RS-485/RS-422 |
| Number of Ports | 8 |
| Isolated | No |
| Maximum Baud Rate | 3000 kbits/s (3 Mbps) |
| Connector Type | 68-pin VHDCI |
| FIFO Size | 128 Bytes |
| Power Requirements | +3.3 VDC, +12 VDC - 700 mA, 190 mA |
| Dimensions | 4.38 × 6.9 in |
| Weight | 0.20 lb. |
| Software Driver | NI-Serial |
| PCIe-8431/8 Manual | User Manual and Maintenance Manual Available for Download |
| Price | Contact a sales representative for a quote. |
Associated part numbers for PCIe-8431-8:
National Instruments PCIe-8431/8 Frequently Asked Questions
Question: What transceiver modes doe the PCIe-8431/8 offer?
Answer: You can select between 4 and 2 wire transceiver modes on the PCIe-8431/8.
Question: What data transmission rates does the NI PCIe-8431/8 provide?
Answer: The NI PCIe-8431/8 offers flexible standard and nonstandard baud rates for data transmissions between 57 b/s and 1 Mb/s.
Question: Will the PCIe-8431/8 work in a PCI slot?
Answer: The PCIe-8431/8 will not work in a PCI slot; it is designed for a PCI Express slot.
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