The National Instruments PCI-485I/2 is an isolated, two-port RS-485/RS-422 interface for PCI systems.
Request current pricing and lead time for this model. Our team will confirm the exact equipment configuration and condition.
Key product information and technical features.
Part of NI's legacy serial hardware family, this card provides isolated serial connectivity through two DB-9 ports.
Driver selection matters: NI-Serial 17.0 removed support for PCI-485I interfaces. Check the hardware and operating-system support of an earlier driver release before integration.
Verified product specifications.
| Serial ports | 2 |
|---|---|
| Continuous isolation, port-to-port and port-to-host | 60 VDC, CAT I |
| Isolation withstand, port-to-port and port-to-host | 2000 Vrms; 5-second dielectric withstand test |
Confirm condition, included accessories and revision before ordering.
Confirmed per unit.
Device / accessories confirmed in quote.
Exact revision confirmed when relevant.
Review system components and compatibility requirements.
Manufacturer
Host bus
Isolated serial interface
NI-Serial 17.0 removed PCI-485I support.
Manuals, software and technical resources for this model.
Review shipping, warranty and return terms before ordering.
Choose pricing, rental or repair for this exact model.
Product-specific answers based on available technical information.
Yes. NI lists RS-485/RS-422 support.
No. It is a 5-second withstand-test value; continuous isolation is 60 VDC, CAT I.
No. NI explicitly removed PCI-485I support in NI-Serial 17.0. Verify an earlier release against your operating system.