National Instruments PXI-6289 User Manual page 41

Chapter 3 Connector and LED Information
Signal Name
AI GND
AI <0..79>
AI SENSE,
AI SENSE 2
AO <0..3>
AO GND
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Table 3-1. I/O Connector Signals
Reference Direction
— —
Varies Input
— Input
AO GND Output
— —
Description
Analog Input Ground—These terminals are the
reference point for single-ended AI measurements
in RSE mode and the bias current return point for
DIFF measurements. All three ground
references—AI GND, AO GND, and
D GND—are connected on the device. Refer to
Connecting Analog Input Signals
the
Analog Input.
Chapter 4,
Analog Input Channels—For single-ended
measurements, each signal is an analog input
voltage channel. In RSE mode, AI GND is the
reference for these signals. In NRSE mode, the
reference for each AI <0..15> signal is
AI SENSE; the reference for each AI <16..63>
and AI <64..79> signal is AI SENSE 2
For differential measurements, AI 0 and AI 8 are
the positive and negative inputs of differential
analog input channel 0. Similarly, the following
signal pairs also form differential input channels:
<AI 1, AI 9>, <AI 2, AI 10>, <AI 3, AI 11>, and
so on.
Connecting Analog Input Signals
Refer to the
Analog
section of Chapter 4,
Analog Input Sense—In NRSE mode, the
reference for each AI <0..15> signal is
AI SENSE; the reference for each AI <16..63>
and AI <64..79> signal is AI SENSE 2
Connecting Analog Input Signals
the
Analog Input.
Chapter 4,
Analog Output Channels—These terminals
supply the voltage output. Refer to the
Analog Output Signals
Analog Output.
Analog Output Ground—AO GND is the
reference for AO <0..3>. All three ground
references—AI GND, AO GND, and
D GND—are connected on the device. Refer to
Connecting Analog Output Signals
the
Analog Output.
Chapter 5,
section of
*
.
Input.
*
. Refer to
section of
Connecting
section of Chapter 5,
section of