NI USB-6008, Инструкция по безопасности и эксплуатации

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NI USB-6008/6009 Safety and Usage Guide 4 ni.com
Signal Name Reference Direction Description
GND — — Ground —The reference point for the single-ended analog input
measurements, analog output voltages, digital signals, +5 VDC supply,
and +2.5 VDC at the I/O connector, and the bias current return point for
differential mode measurements.
AI <0..7> Varies Input Analog Input Channels 0 to 7 —For single-ended measurements, each
signal is an analog input voltage channel. For differential measurements,
AI 0 and AI 4 are the positive and negative inputs of differential analog
input channel 0. The following signal pairs also form differential input
channels: <AI 1, AI 5>, <AI 2, AI 6>, and <AI 3, AI 7>.
AO <0, 1> GND Output Analog Output Channels 0 and 1 —Supplies the voltage output of
AO channel 0 or AO channel 1.
P0.<0..7> GND Input or Output Port 0 Digital I/O Channels 0 to 7 —You can individually configure
each signal as an input or output.
P1.<0..3> GND Input or Output Port 1 Digital I/O Channels 0 to 3 —You can individually configure
each signal as an input or output.
PFI 0 GND Input PFI 0 —This pin is configurable as either a digital trigger or an event
counter input.
+2.5 V GND Output +2.5 V External Reference —Provides a reference for wrap-back
testing.
+5 V GND Output +5 V Power Source —Pr5 V power up to 200 mA.