PXI Modules
PCI eXtensions for Instrumentation (PXI) modular instrumentation delivers a PC-based, standardized, high-performance measurement and automation system. PXI combines the high-speed PCI bus with integrated timing and triggering designed specifically for measurement and automation applications to deliver significant performance improvements over older architectures. The following figure shows a typical PXI chassis installation.
NI RF Signal Generators Available as PXI Modules
The NI 5650/5651/5652/5670/5671 RF signal generators are available in the PXI form factor.
Chassis Guidelines
NI PXI RF signal generators can be installed in the following chassis and slots:
- PXI chassis—NI PXI RF signal generators can be installed in any peripheral slot of a PXI chassis.
- PXI-Express chassis—NI PXI RF signal generators can be installed in the following PXI Express chassis slots:
- PXI-1 slots—Accepts PXI modules
- PXI hybrid slots—Accepts either PXI modules that are hybrid slot-compatible or PXI Express modules
Using PXI-Compatible Products with Standard CompactPCI Products
The ability to use PXI-compatible products with standard CompactPCI products is an important feature provided by the PXI Specification, revision 2.1. If you use a PXI-compatible plug-in device in a standard CompactPCI chassis, you cannot use PXI-specific functions, but you can still use the basic plug-in device functions. For example, the PXI trigger bus on a NI signal generators is available in a PXI chassis but not in a CompactPCI chassis. The CompactPCI specification permits vendors to develop sub-buses that co-exist with the basic PCI interface on the CompactPCI bus. Compatible operation is not guaranteed between CompactPCI devices with different sub-buses nor between CompactPCI devices with sub-buses and PXI. The standard implementation for CompactPCI does not include these sub-buses. NI signal generators work in any standard CompactPCI chassis. PXI-specific features, such as PXI_Trig bus and PXI_CLK10 reference are implemented on the J2 connector of the CompactPCI bus.
Related Topics
Related Web Topics
Refer to PXI Specification Tutorial at ni.com/zone for an overview of the PXI Specification.
Refer to How do National Instruments PXI Boards map to the PXI Backplane? at ni.com/zone for an overview of PXI-specific functions.