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PCIe-8432-2 Request for Availability
PCIe-8432/2, 2-Port, RS-232 Serial Interface Device
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Actual item may vary if no part number is provided on quote request.
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March 2025
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January 2025
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May 2025
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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-8432/2 Serial Interface Device
The National Instruments PCIe-8432/2 (Part Number: 781744-01) is a 2-Port, PCI Express based, Serial Interface Device designed to provided isolated, port-to-port connectivity with RS232 devices. This model comes with one DB-9 male connector as the main I/O connector. The NI PCIe-8432/2 offers 60 VDC (CAT I) continuous isolation and 2000 Vrms withstand port-to-host isolation. While operating in standard conditions, the PCIe-8432/2 draws 55 mA of current at +12 VDC and 610 mA at +3.3 VDC. However, the maximum amount of current this model can draw from the two above mentioned voltage sources is 160 mA and 650 mA.
The National Instruments PCIe-8432/2 Serial Interface Device offers up to 1 Mbps serial transfer rate. This Serial Interface Device has a PCI Express form factor, weighs around 91 grams, and has physical dimensions of 11.12 × 16.67 cm. To offer high-speed transfers, this model comes incorporated with DMA technology. This model additionally supports multiprocessors and multithreading. With DMA enabled devices, the user can achieve better transfer rates because the scheme information flows directly between the I/O device and the main memory. Thus, the CPU remains out of loop and does not become overloaded. Moreover, this device also has a dedicated 128 B transmit and receive FIFO capacity, which is compatible with Modbus Serial.
The NI PCIe-8432/2 device is offered with NI-VISA API software. This software brings a simplified serial programming experience to the users and also ensures the validity of their codes across other VISA-compatible interfaces.
| Model | PCIe-8432/2 |
|---|---|
| Manufacturer | National Instruments |
| Part Number | 781744-01 |
| Type | Serial Interface Device |
| Number of Ports | 2 |
| Standard | RS232 |
| Isolated | Yes |
| Maximum Baud Rate | 1000 kbits/s (1 Mbps) |
| Connector Type | DB-9 male |
| FIFO Size | 128 Bytes |
| Power Requirements | +12 VDC, +3.3 VDC - 55 mA, 610 mA |
| Dimensions | 4.38 × 6.6 in. |
| Weight | 0.2 lb. |
| Software Driver | NI-Serial |
| Warranty | 2-3 Year Warranty |
| PCIe-8432/2 Manual | User Manual and Maintenance Manual Available for Download |
| Price | Contact a sales representative for a quote. |
Associated part numbers for PCIe-8432-2:
National Instruments PCIe-8432/2 Frequently Asked Questions
Question: Can you communicate with external serial hardware if you’re using a PCIe-8432/2?
Answer: Yes, the PCIe-8432/2 allows you to communicate with and control external serial hardware.
Question: What are the number of serial channels on the PCIe-8432/2?
Answer: There are 2 serial channels available on the PCIe-8432/2.
Question: Why does the NI Serial Troubleshooter pop up when I’m installing my NI PCIe-8432/2?
Answer: The NI Serial Troubleshooter is how you access the set-up process for the NI PCIe-8432/2.
PCIe-8432-2 PDF Manuals
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