National Instruments R Series Getting Started Guide

Table 2. NI PXIe-7868R Signal Descriptions (Continued)
Signal Description
DIO Digital input/output signal connection
DGND Ground reference for the digital signal
EXTCLKIN External clock input source that can be used for source synchronous
acquisitions. The provided clock source must be stable and glitch-free.
GND Ground connection
Supply (+5 V
out
) 5 V power output connection for external devices
NC No connection
The NI PXIe-7868R is protected from overvoltage and overcurrent conditions.
Note Refer to the NI PXIe-7868R Specifications, available at ni.com/manuals for
more information.
Note The pinout label on the lid of the SCB-68A accessory is incompatible with
the NI PXIe-7868R. Refer to the NI 78xxR Pinout Labels for the SCB-68A, available
at ni.com/manuals for the compatible pinout labels.
NI PXIe-7868R Getting Started Guide | © National Instruments | 9

National Instruments R Series Specifications

General

Brand	National Instruments
Model	R Series
Category	PCI Card
Language	English