The National Instruments PXIe-8370 and PCIe-8371 MXI-Express x4 kit provides a high speed remote connection between a host computer and a PXI Express chassis. The kit pairs a host side adapter with a chassis side module and includes a two meter cable. It is used in automated test, laboratory measurement, and industrial systems where the PXI hardware must be placed near the device under test while the computer remains in a control area.
MXI-Express extends the PCI Express bus over a cable. With this kit, the host computer controls PXI Express modules as if they were installed in the computer. This architecture separates computing resources from measurement hardware, supports easier host upgrades, and allows flexible test station layout.
Kit Architecture
The kit includes two adapters and a cable. One adapter installs in the host computer and the other installs in the PXI Express chassis system slot. The cable links the two adapters and carries the PCI Express link. Engineers should verify slot compatibility, power requirements, and cable routing for the installation.
The x4 link provides high throughput for data intensive measurement. Engineers should plan bandwidth according to the number and type of PXI modules. Documentation of host and chassis configuration helps maintenance.
Cable and Link Planning
The included two meter cable provides flexibility in placing the chassis relative to the computer. Cable routing should avoid sharp bends, heat sources, and mechanical strain. Connectors should be fully seated and secured.
The link should be planned for reliability. Engineers should verify that the cable remains within the supported length and type for the adapters. Strain relief and labeling help prevent accidental disconnection.
System Integration
The kit integrates with PXI Express chassis, controllers, and modules. It can be used with a range of instruments and DAQ modules. Engineers should verify software support and driver versions for the host operating system.
For automated test, remote control supports centralized computing and easier software management. The chassis can be located in a test cell or rack while the computer remains in a laboratory or control room.
Applications
The kit is suited to automated test, laboratory instrumentation, production validation, and research systems. It supports flexible placement of PXI Express hardware and centralized host computing.
Installation and Maintenance
Installation requires installing the host adapter, installing the chassis adapter, and connecting the cable. Power should be off during installation. Engineers should verify link status after startup and check driver recognition.
Maintenance includes checking cable connections, verifying link status, and reviewing software configuration. Documentation helps troubleshooting.
Summary
The National Instruments PXIe-8370 and PCIe-8371 MXI-Express x4 kit provides a high speed remote link between a host computer and a PXI Express chassis. It supports flexible test station layout, centralized computing, and high throughput communication. The kit is a practical solution for engineers who need remote PXI Express control.
