I/O Connector Signal Descriptions; Table 2-2. I/O Connector Signal Descriptions - National Instruments SC Express NI PXIe-4339 User Manual

Chapter 2 Using the Module

I/O Connector Signal Descriptions

Table 2-2 describes the signals found on the I/O connector.
Signal Names
AIGND
AOGND
AI<0..7>+, AI<0..7>-
SCA<0..7>
EX<0..7>+, EX<0..7>-
RS<0..7>+, RS<0..7>-
AO<0..7>+
T<0..7>+
RSVD
DGND
PFI0
2-22 | ni.com

Table 2-2. I/O Connector Signal Descriptions

Direction
—
—
Input
—
Output
Input
Output
Input/Output
—
—
Input/Output
Description
Analog Input Ground
Analog Output Ground
Analog Input Channels 0 to 7—AI+ and AI- are
the positive and negative inputs of the
differential analog input.
These pins provide the connection point to the
shunt calibration switch.
Provides the differential bridge excitation
voltage.
Remote sense input—The remote sense pins
sense the actual voltage applied to the bridge.
Wide Bandwidth Analog Output Channels 0 to
7, ground referenced to AOGND. This signal is
a current-limited and external-voltage-fault
protected copy of the first gain stage output.
TEDS sensor digital communication lines,
referenced to DGND.
These pins are reserved for communication with
the accessory.
Digital ground—These pins supply the
reference for module digital signals and are
connected to the module digital ground.
3.3 V digital signal for sending or receiving
trigger and synchronization signals. This line is
referenced to DGND.