National Instruments USB-621 Series User Manual page 194

Index
Symbols
+5 V power
input, 3-3
output, 3-3
source, 3-3
Numerics
100 kHz Timebase, 10-1
20 MHz Timebase, 10-1
80 MHz Timebase, 10-1
A
A/D converter, 4-2
AC return path, creating, 9-4
accessories, 2-4
USB-6212 Mass Termination, A-10
USB-6216 Mass Termination, A-10
acquisition
circular-buffered, 4-9
double-buffered, 4-9
hardware-timed, 4-9
on-demand, 4-8
software-timed, 4-8
ACT LED, 3-6
ADC, 4-2
AI Convert Clock signal, 4-16
AI Convert Clock Timebase signal, 4-19
AI FIFO, 4-2
AI Hold Complete Event signal, 4-19
AI Pause Trigger signal, 4-22
AI Reference Trigger signal, 4-21
AI Sample Clock signal, 4-14
AI Sample Clock Timebase signal, 4-15
AI Start Trigger signal, 4-20
ai/ConvertClock, 4-16
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ai/ConvertClockTimebase, 4-19
ai/HoldCompleteEvent, 4-19
ai/PauseTrigger, 4-22
ai/ReferenceTrigger, 4-21
ai/SampleClock, 4-14
ai/SampleClockTimebase, 4-15
ai/StartTrigger, 4-20
analog input, 4-1
channels, sampling with AI Sample Clock
and AI Convert Clock, B-2
charge injection, B-1
circuitry, 4-1
connecting signals on
USB-6210/6211/6212 devices, 4-23
connecting signals on
USB-6215/6216/6218 devices, 4-36
connecting through I/O connector, 4-1
crosstalk when sampling multiple
channels, B-1
data acquisition methods, 4-8
differential, troubleshooting, B-1
getting started with applications in
software, 4-22
ghost voltages when sampling multiple
channels, B-1
ground-reference settings, 4-1
MUX, 4-1
sampling channels with AI Sample Clock
and AI Convert Clock, B-2
signals, 4-11
timing signals, 4-11
triggering, 4-10
troubleshooting, B-1
analog input signals, 4-11
AI Convert Clock, 4-16
AI Convert Clock Timebase, 4-19
AI Hold Complete Event, 4-19
AI Pause Trigger, 4-22
I-1 NI USB-621x User Manual