© National Instruments Corporation Index-1 SCXI-1121 User Manual
Index

Numbers

+5 V signal
front connector (table), 2-18, D-3
SCXIbus connector (table), 3-4

A

AB0+ signal (table), 3-4, C-3
AB0- signal (table), 3-4, C-3
AB0EN bit, 4-4
AC-coupled signal connections
external resistor required, 2-21
floating (figure), 2-21
referenced to chassis ground (figure), 2-20
acquisition enable, programming, 5-14 to 5-15
analog and timing circuitry, 3-8 to 3-16
analog input channels, 3-8 to 3-11
analog output circuitry, 3-15 to 3-16
calibration, 3-11 to 3-14
excitation output channels, 3-11
analog configuration, 2-6 to 2-13
excitation jumpers, 2-9 to 2-13
current and voltage jumpers,
2-9to2-10
excitation level, 2-10 to 2-11
internal half-bridge completion,
2-12 to 2-13
grounding, shielding, and reference mode
selection, 2-6 to 2-7
input channel jumpers, 2-8 to 2-13
excitation jumpers, 2-9 to 2-13
filter jumpers, 2-9
gain jumpers, 2-8
jumper W33, 2-6 to 2-7
analog input channels
block diagram, 3-9
signal connections, 2-20 to 2-22
AC-coupled, with high common-mode
voltage (figure), 2-21
exceeding input range and
common-mode input range
(warning), 2-22
floating, referenced to chassis ground
(figure), 2-20
floating AC-coupled (figure), 2-21
ground-referenced, with high
common-mode voltage (figure), 2-20
theory of operation, 3-8 to 3-11
analog input specifications, A-1 to A-2
analog output circuitry, 3-15 to 3-16
analog output signal connections, 2-39
AOGND signal (table), 2-38, B-2

B

bits AB0EN, 4-4
CHAN<1..0>, 4-4
CHS<4..0>, 4-6
CLKEN, 4-8
CLKOUTEN, 4-3
CLKSELECT, 4-3
CNT<6..0>, 4-9
FOUTEN*, 4-5
FRT, 4-7
HSRS*, 4-7
LOAD*, 4-7
ONCE, 4-7
RD, 4-7
RTEMP, 4-4
SCAL, 4-3
SCANCLKEN, 4-4
SCANCONEN, 4-4, 4-8
SL<3..0>, 4-6