National Instruments PXI-8431/2 PXI Serial Interface Module

The PXI-8431/2 (Part Number: 778984-01) is an elite interface for rapid communication with RS-485 and RS-422 modules. This module offers superior DMA exchanges, different strings, and numerous processors. The user can choose between 4 and 2-line handset modes to have full and half duplex communication. Serial interfaces additionally show up as standard COM ports to offer similarity with programs that use serial interchanges. The NI PXI-8431/2 is a 2-port module that communicates with RS-485 and RS-422 gadgets at rates up to 3,000 kbit/s. This RS-485/RS-422 Interface offers adaptable baud rates for information transmissions between 57 bauds and 3,000,000 baud to inside 1 percent exactness for nonstandard baud rates and 0.01 percent precision for standard baud rates. The device is equipped with a DB-9 male I/O connector.

The PXI-8431/2 ground loops are current moving through the ground line when ground voltage levels contrast between associated gadgets. They are a typical issue in numerous mechanical applications. On RS-485 devices, this issue brings about a typical mode voltage created by the distinction in ground levels or by commotion actuated on the two lines. Confining serial ports eliminate this issue and secures the PC framework in harsh industrial conditions. The National Instruments PXI-8431/2 RS-485/RS-422 Interface is accessible with optical isolation up to 2,000 V for such applications.

The TCP/IP communication convention, which handles all communication between the serial gadget server and the host PC, keeps running on installed firmware in the serial gadget server. A design utility arranges the IP address of the serial gadget server and uncovers all extra serial ports to the OS for quick use by any application programming bundle utilizing a standard Microsoft Windows Serial (COM) port interface.

The NI device weighs 134 g, and measures 3.94 x 6.37 in. in physical dimensions. It has a recommended operating temperature range of 0 to 55 °C, a storage temperature range of –20 to 70 °C, and an operating and storage humidity range of 10 to 90% and 5 to 95% respectively. 

Apex Waves will continue to Buy, Sell, and Repair EOL NI Hardware in perpetuity. While the PXI-8431/2 entered the NI Maintenance phase on March 31, 2022, it will remain available with Apex Waves. Request your quote today!