NI-9871 is not available.

The model requested is not available for purchase in your country.

NI-9871

NI-9871

C Series Serial Interface Module

Request Pricing

4-Port, RS485/RS422 C Series Serial Interface Module—The NI‑9871 adds RS485/RS422 serial ports to CompactRIO systems. The serial ports are accessed directly from the FPGA to offer you flexibility in communicating with serial devices. The module has individual buffers on every port that save FPGA space and simplify programming. The NI‑9871 supports standard start bit, stop bit, and handshaking settings. It uses an external power to provide maximum compatibility and reliability under all serial port conditions.

Product Support Resources

Find complete product documentation to learn how to get started and use the product.

Locate supported instrument drivers and downloads for the product.

Explore a wide range of support content, including examples and troubleshooting information.

Network, share, and ask questions with other members of the NI community.