A Review of Activities in VXI, LXI and PXI Test Systems

The main system standards are VXI, LXI and PXI. (See the following page for descriptions of these systems.) VXI is based on the long-established VMEbus, while PXI is based on the PCI bus used in the personal computer industry. Both have the advantage of using well-established form factors. LXI extends VXI into LAN communications, also using a well-established communications protocol, Ethernet. The following announcements of new products for these systems reveal some of the important performance issues and operational features that test engineers must consider when developing test systems.