National Instruments USB-621 Series User Manual page 196

clock
generation, 10-1
sample, 8-34
combicon, 2-4
common-mode noise, 9-3
configuring AI ground-reference settings in
software, 4-5
connecting
analog input signals
on USB-6210/6211/6212
devices, 4-23
on USB-6215/6216/6218
devices, 4-36
analog output signals, 5-4
digital I/O signals
on USB-6210/6211/6215/6218, 6-3
on USB-6212/6216, 6-6
floating signal sources, 4-25
ground-referenced signal sources, 4-31
PFI input signals, 7-4
to earth ground, 3-4
connections
for floating signal sources, 4-31
single-ended for floating signal
sources, 4-31
single-ended, referenced
configuration, 4-31
connector
information, 3-1
labels for USB-621x Screw Terminal, 1-3
USB-6210 pinout, A-2
USB-6211 pinout, A-4
USB-6212 BNC pinout, A-13
USB-6212 Mass Termination pinout, A-8
USB-6212 Screw Terminal pinout, A-6
USB-6215 pinout, A-4
USB-6216 BNC pinout, A-13
USB-6216 Mass Termination pinout, A-8
USB-6216 Screw Terminal pinout, A-6
USB-6218 BNC pinout, A-21
USB-6218 Screw Terminal pinout, A-19
© National Instruments Corporation
USB-6259 BNC pinout, A-13, A-21
considerations
for field wiring, 4-10
for multichannel scanning, 4-5
continuous pulse train generation, 8-23
controlling counting direction, 8-2
conventions used in the manual, xiii
counter input and output, 8-32
Counter n A signal, 8-30
Counter n Aux signal, 8-29
Counter n B signal, 8-30
Counter n Gate signal, 8-29
Counter n HW Arm signal, 8-30
Counter n Internal Output signal, 8-31
Counter n Source signal, 8-28
Counter n TC signal, 8-31
Counter n Up_Down signal, 8-30
Counter n Z signal, 8-30
counter signals
Counter n A, 8-30
Counter n Aux, 8-29
Counter n B, 8-30
Counter n Gate, 8-29
Counter n HW Arm, 8-30
Counter n Internal Output, 8-31
Counter n Source, 8-28
Counter n TC, 8-31
Counter n Up_Down, 8-30
FREQ OUT, 8-31
Frequency Output, 8-31
counters, 8-1
cascading, 8-35
connecting terminals, 8-32
duplicate count prevention, 8-37
edge counting, 8-2
filters, 8-35
generation, 8-21
input applications, 8-2
other features, 8-34
output applications, 8-21
I-3
Index
NI USB-621x User Manual