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July 2025
PXI-8420-8
PXI-8420/8, 8-Port, RS-232 Interface
Actual item may vary if no part number is provided on quote request.
✔ 2 Year Warranty Included
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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
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
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-8420/8 RS-232 Interface
The PXI-8420/8 (Part Number: 777733-08, 185435D-01) has IBM-compatible PCs that verifiably utilized RS-232 (ANSI/EIA-232 standard), most regularly to associate with a mouse, printer, or modem, and additionally test, estimation, and research facility instrumentation. Due to upgrades in line drivers and links, applications regularly increment the execution of RS-232 past the separation and speed recorded in the standard. RS-232 is restricted to point-to-point associations between serial PC (COM) ports and gadgets.
The National Instruments PXI-8420/8 Serial Interface provides users with a network to the numerous serial gadgets accessible for test and estimation, modern, assembling, and research center information obtaining. Numerous applications essentially require more serial ports than a standard PC offers. In modern applications, gadgets, for example, PLCs, information lumberjacks, and single-point I/O modules utilize RS-232 for long separation (up to 1.2 km) and multidrop capacities. National Instruments RS-232 Interface gives the user the adaptability of software-configurable multiport capacity to meet the correct application needs.
In the NI PXI-8420/8, the network is to introduce ending resistors at each finish of the multidrop network. If the user daisy-chains a few instruments together, they should utilize ending resistors at the first and last instruments. The National Instruments DB-9 ending connector contains inserted ending resistors for the simple end of the RS-232 system and gadgets. In this mode, the serial equipment straightforwardly empowers the transmitter and receiver in a two-wire framework. This mode can be utilized to evacuate the weight of stream control from the user’s application. By associating the transmitter to the TXRDY (Transmit Ready) line, the equipment empowers the transmitter for every byte to be transmitted.
PXI-8420/8 Obsolete Status has been announced by National Instruments, but the module will still be available for purchase and repairs by Apex Waves.
| Model | PXI-8420/8 |
|---|---|
| Part Number | 777733-08, 185435D-01 |
| Manufacturer | National Instruments |
| Type | PXI Serial Interface Module |
| Ports | 8 |
| Supported Serial Protocols | RS-232 |
| Maximum Transfer Rate | 115.2 kb/s |
| Dimensions | 3.9 x 6.3 in. |
| I/O Connector | SCSI 68-pin interface |
| PXI-8420/8 Manual | User Manual and Maintenance Manual Available for Download |
| Price | Contact a sales representative for a quote. |
Associated part numbers for PXI-8420-8:
National Instruments PXI-8420/8 Frequently Asked Questions
Question: What is the maximum current for the PXI-8420/8 at +12 VDC?
Answer: The maximum current for the PXI-8420/8 is 800 mA at +12 VDC.
Question: What is the data line ESD protection (HBM) for the NI PXI-8420/8?
Answer: The NI PXI-8420/8 has a data line ESD protection (HBM) of ± 15 kV.
Question: What is the typical current for the PXI-8420/8?
Answer: The typical current for the PXI-8420/8 is 80 mA.
Question: Which signals does the NI PXI-8420/8 support?
Answer: The NI PXI-8420/8 supports all signals.
PXI-8420-8 PDF Manuals
ARCHIVED--GETTING-STARTED-WITH-YOUR-PXI-SERIAL-HARDWARE-AND-SOFTWARE-FOR-WINDOWS-2000.PDF
ARCHIVED--GETTING-STARTED-WITH-YOUR-PXI-SERIAL-HARDWARE-AND-SOFTWARE-FOR-WINDOWS-ME-9X.PDF
ARCHIVED--GETTING-STARTED-WITH-YOUR-PXI-SERIAL-HARDWARE-AND-SOFTWARE-FOR-WINDOWS-NT.PDF
ARCHIVED--NI-SERIAL-HARDWARE-SPECIFICATIONS-GUIDE.PDF
NI-SERIAL-HARDWARE-SPECIFICATIONS-GUIDE.PDF
NI-SERIAL-LEGACY-HARDWARE-SPECIFICATIONS-AND-FEATURES-GUIDE.PDF
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