The demanding timing and synchronization requirements of instrumentation systems are met
by the integrated features of PXI Express. Not only are the trigger bus, 10 MHz system
reference clock, and star trigger bus available in PXI retained by PXI Express, but new timing
and synchronization features that include a 100 MHz differential system reference clock for
the synchronization of multiple modules and three differential star trigger buses for the
distribution of precise clock and trigger signals have been added. Differential timing and
synchronization signals provide PXI Express systems with increased noise immunity and the
ability to transmit clock signals at higher frequencies.
NI PXIe-8840 Quad-Core
Description
The NI PXIe-8840 Quad-Core PXI Express/CompactPCI Express embedded controller is a
high-performance PXI Express/CompactPCI Express-compatible system controller. The
NI PXIe-8840 Quad-Core controller integrates standard I/O features in a single unit by using
state-of-the-art packaging. Combining an NI PXIe-8840 Quad-Core embedded controller with
a PXI Express-compatible chassis, such as the NI PXIe-1085, results in a fully PC-compatible
computer in a compact, rugged package.
The NI PXIe-8840 Quad-Core has an Intel
®
Core
™
i7 5700EQ processor (2.6 GHz quad-core
processor), all the standard I/O, and a 320 GB (or larger) hard drive. It also has a PCI-based
GPIB controller and an ExpressCard/34 expansion slot
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.
The standard I/O on each module includes two DisplayPort video, one RS-232 serial port, four
Hi-Speed USB ports, two SuperSpeed USB ports, two Gigabit Ethernet, a reset button, and a
PXI trigger.
Functional Overview
The NI PXIe-8840 Quad-Core is a modular PC in a PXI Express 3U-size form factor. The
following figure is a functional block diagram of the NI PXIe-8840 Quad-Core. Following the
diagram is a description of each logic block shown.
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Available on the NI PXIe-8840 Quad-Core ExpressCard variant only.
NI PXIe-8840 Quad-Core User Manual
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© National Instruments
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