The National Instruments PXI-8431/8 is an eight-port, non-isolated PXI serial interface for RS-485 and RS-422 communication, supporting baud rates up to 3 Mbaud.
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Key product information and technical features.
The PXI-8431/8 adds eight RS-485/RS-422 serial ports to a PXI system. NI lists this exact model among the interfaces supported by NI-Serial 20.0.
Its 68-pin SCSI connection differs from the VHDCI connector used by the similarly named PXIe-8431/8. Verify the module identity and cable connector before integrating it.
Verified product specifications.
| Platform | PXI |
|---|---|
| Serial ports | 8 ports |
| Serial standards | RS-485/RS-422 |
| Isolation | None |
| Maximum baud rate | 3000 kbaud |
| Maximum baud rate in two-wire auto-control mode | 2000 kbaud |
| Connector | 68-pin SCSI |
| FIFO size | 128 bytes |
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Manufacturer
Hardware platform
Eight-port RS-485/RS-422 interface
Listed in NI-Serial 20.0 supported hardware.
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Product-specific answers based on available technical information.
NI lists this model for RS-485/RS-422, not RS-232.
No. NI identifies the PXI-8431/8 as non-isolated.