National Instruments PXI-8331 Interface Module

The NI PXI-8331 (Part Number: 778955-01, 778955-02) Interface Module gives PCs direct control of PXI frameworks by utilizing MXI-4 innovation. This module can be utilized to connect numerous PXI chassis in a daisy-chain or star arrangement in one system. This interface couples to physically isolate buses with a copper data link capable (Sold Separately) for 1.5 Gbit/s serial data rates. The MXI-4 innovation enables the PXI-8331 module to be utilized as though it is a PCI module straightforwardly introduced to a PC. This Interface Module can be paired with a PCI-8331 or with another PXI-8331. Part number 778955-01 has connections for copper cables, while part number 778955-02 has a copper interface (3.3V or 5V). 

Compatibility with the NI PXI 8331 is greatly dependent on the motherboard of the PC. Therefore, if the client is utilizing a similar hardware PC and upgrading only the operating system, it is expected to work. Notwithstanding, to utilize the PXI-8331 with Windows 10 64-bit, the user should have PXI Platform Services 15.0 or higher installed on their PC. A few useful features of this module are error checking and retransmission, as well as support for 3.3 V and 5 V PCI. Additionally, it has a peak data transfer rate of 132 Mb per second.

Since working frameworks and drivers usually assume the PXI-8331 Interface Module will be available in the framework from control up to shut down, it is imperative not to power off the expansion chassis until the host PC or embedded controller is powered off. Powering the expansion chassis off while the host is still on can cause crashes or hangs. The request in which development chassis are turned off, in respect to each other, is not critical.

The PXI-8331 specification places a limit on the quantity of PXI-8331 MXI-4 Interface Modules that can be set on one PXI-8331 bus segment to ensure the electrical attributes and timing of the bus. The NI device weighs 0.55 lb, and measures 3.9 x 6.3 in. in physical dimensions. It has a recommended operating temperature range of 0 to 55 °C, and a storage temperature range of –20 to 70 °C. 

PXI-8331 Obsolete Status has been announced by National Instruments, but the module will still be available for purchase and repairs by Apex Waves.