Peripheral
External Connector
Description
USB
USB 4-pin Series A stacked
receptacle (4 ports)
Hi-Speed USB
USB 9-pin Series A stacked
receptacle (2 ports)
SuperSpeed USB, backwards
compatible with USB 2.0
PXI trigger
Trigger (SMB)
Routing PXI triggers to or from the
backplane trigger bus
GPIB device
GPIB (25-pin Micro D)
General-Purpose Interface Bus, IEEE
488.1
ExpressCard/34
module
ExpressCard/34 slot
ExpressCard/34 Expansion
PXI Express Trigger Connectivity
The SMB connector on the NI PXIe-8840 Quad-Core front panel can connect to or
from any PXI Express backplane trigger line. A trigger allocation process is needed to
prevent two resources from connecting to the same trigger line, resulting in the
trigger being double-driven and possibly damaging the hardware. At the time of this
manual’s publication, this software is not yet available for Windows. Contact
National Instruments for more information.
Front Panel Features
The NI PXIe-8840 Quad-Core has the following front-panel features:
■
A controller reset push button (press the button to generate a reset to the
controller)
■
Two front panel LEDs that show PC status:
■
DRIVE LED
— Indicates when an access to the internal hard disk is
occurring.
■
PWR OK/FAULT LED
—Indicates the controller status. The LED indicates
one of the following states:
■
Green ON steady
—PXI and onboard power is on and within
regulation limits.
ni.com
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PXIe-8840 Quad Core
