National Instruments Corporation NI 9870, 4 Port RS 232 Serial Module, Conformal Coating
- 4 RS232 (TIA/EIA-232) serial ports for CompactRIO
- Baud rates from 14 b/s to 921.6 kb/s
- Data bits: 5, 6, 7, 8; Stop bits: 1, 1.5, 2; Flow control: XON/OFF, RTS/CTS, None
- Individual 64 B UART FIFO buffers per port
- 8 to 28 VDC externally powered; PC-MF4-PT cable included
- -40 to 70 C operating range
- Configure Complete CompactRIO System
- View Data Sheet
View Support Resources
The NI 9870 is a C Series module from National Instruments that provides four independent RS232 serial ports for CompactRIO and CompactDAQ systems. Designed for high-performance serial communication, it supports standard baud rates up to 230.4 kbps per port and features advanced features such as hardware handshaking and FIFO buffers for reliable data transfer. The conformal coating version (PN: 779891-03) offers enhanced protection against moisture, dust, and chemical contaminants, making it suitable for deployment in harsh or industrial environments. The module is hot-swappable and integrates seamlessly with NI LabVIEW for configuration and programming.