Table 1. PCIe-7856 Signal Descriptions
Signal
Description
AI+
Positive analog input signal connection
AI-
Negative analog input signal connection
AISENSE
Reference connection for NRSE measurements
AIGND
Ground reference for the analog input signal
AO
Analog output signal connection
AOGND
Ground reference for the analog output signal
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 PCIe-7856 is protected from overvoltage and overcurrent conditions.
Note
Refer to the device specifications, available at
ni.com/manuals
for more
information.
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ni.com
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NI PCIe-7856 Getting Started Guide
