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PCIe-8431-16
PCIe-8431/16, 16-Port, RS-485/RS-422 Serial Interface Device
Actual item may vary if no part number is provided on quote request.
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March 2025
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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-8431/16 Serial Interface Device
Featured with DMA transfers, the National Instruments PCIe-8431/16 (Part number: 780592-02) is an Interface Device for communication with RS422 and RS485 devices. With its multithreading and multiprocessor support, the PCIe-8431/16 can offer unmatched speed and flexibility. This model permits the user to choose between 2-wire and 4-wire transceiver modes for half and full-duplex communications. In full-duplex communication mode, both the PCIe-8431/16 and the connected serial device can transmit and receive information simultaneously. On the other hand, in half-duplex mode, the transmission and reception of information between the communications interface and the target device takes place on alternate basis so that one point transmits and the other one receives and vice versa.
The National Instruments PCIe-8431/16 comes equipped with two 68-pin VHDCI type connectors; the required serial connector cables are also supplied by the vendor. These cables terminate in male, DB-9 serial connectors. This model has 16-ports and offers up to 3000.0 kbaud maximum baud rate. It is important to note that a maximum baud rate of 2000 kbaud is possible when the device operates in 2-wire auto control mode with RS-485 transceiver control. This PCI Express based device has 4.38 × 6.9 in. physical dimensions and weighs around 101 grams.
The PCIe-8431/16 device requires and draws 400 mA at +3.3 VDC and 210 mA at +12 VDC in typical conditions. This Serial Interface Device offers better than 0.5% accuracy for nonstandard and 0.015% accuracy for standard baud rates. Unlike other similar products, the user can operate multiple PCIe-8431/16 units in parallel.
| Model | PCIe-8431-16 |
|---|---|
| Manufacturer | National Instruments |
| Part Number | 780592-02 |
| Type | Serial Interface Device |
| Standard | RS-485/RS-422 |
| Number of Ports | 16 |
| Isolated | No |
| Maximum Baud Rate | 3000 kbits/s (3 Mbps) |
| Connector Type | 2 x 68-pin VHDCI |
| FIFO Size | 128 Bytes |
| Power Requirements | +3.3 VDC, +12 VDC - 1.4 A, 210 mA |
| Dimensions | 4.38 × 6.9 in |
| Weight | 0.22 lb. |
| Software Driver | NI-Serial |
| PCIe-8431/16 Manual | User Manual and Maintenance Manual Available for Download |
| Price | Contact a sales representative for a quote. |
Associated part numbers for PCIe-8431-16:
National Instruments PCIe-8431/16 Frequently Asked Questions
Question: Can I use the RS-485 protocol and the RS-422 protocol at the same time from my PCIe-8431/16?
Answer: Yes, you can use both the RS-485 and the RS-422 protocols simultaneously with the PCIe-8431/16.
Question: Can I use 11 ports to develop a communication system using the NI PCIe-8431/16?
Answer: Yes, you can use 11 ports with the NI PCIe-8431/16.
Question: How many ports does the PCIe-8431/16 have?
Answer: The PCIe-8431/16 has 16 ports available.
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