Product Overview
NI PXI‑8421 RS-485 PXI Serial Interface Card
Product Condition
Used and in good cosmetic shape; shows signs of normal use, including scuffs, scratches, and minor wear.
Product Overview
The NI PXI‑8421 is a serial interface module for PXI systems, offering multiple RS‑485/RS‑422 ports. Compatible with standard Windows COM port drivers, it integrates seamlessly into automated test environments using LabVIEW, LabWindows/CVI, or other tools.
Key Features
- RS‑485 / RS‑422 interface with selectable 2‑wire or full duplex control
- Up to 460.8 kbit/s max baud rate
- 64-byte transmit/receive FIFO buffers
- Available in 2-port DB‑9, 4-port 10P10C, and 8-port SCSI configurations
- No port-to-port isolation; common ground across ports
- PXI 3U form factor; approx. 3.94" × 6.37"
- Supports hardware flow control, loopback, and multi-drop communication
- Plug-and-play with NI-Serial and NI-VISA drivers
Applications
- Industrial automation and monitoring
- Embedded system testing
- PXI-based test benches
- Legacy serial device integration
Frequently Asked Questions
What is PartsMine.com?
We’re a small team in Idaho with a big love for useful parts. Since 2018, we’ve been helping businesses, inventors, fixers, and tinkerers find the stuff they need. We source good parts from real places - labs, factories, and tech closets around the U.S., give them a once-over, and ship ’em out fast from Idaho. Everything we sell is backed by us - because you're the reason we're here.
How fast is shipping?
Pretty fast. Most orders ship within one business day from Idaho—often same-day if you catch us early. We don’t mess around when it comes to getting parts out the door.
What’s included?
You’ll get exactly what’s shown in the photos: NI PXI‑8421 module with port connectors as pictured. No guesswork, no missing pieces.
Can I get more info before buying?
Absolutely. Ask away! We’re generalists, and as you can see—we’ve got a lot of stuff. But we’ll give it our best shot and get back to you with a straight answer. No runaround.
What does "Used and in good cosmetic shape; shows signs of normal use, including scuffs, scratches, and minor wear." mean?
It means the part has been previously owned but is still in solid working shape. It might have scuffs or labels, but nothing that affects function. No hidden surprises.
