National Instruments SCB-68 User Manual

Page 101

Index

I-5

SCB-68 Shielded Connector Block User Manual

input modes. See analog input signal

connections

installation

68-pin cables, 1-5 to 1-6

connecting to SCB-68 (figure), 1-6
quick reference label (table), 1-2

100-pin cables, 1-6 to 1-10

connecting to SCB-68 (figure), 1-7
pin assignments

SCB-68 E Series I/O Connector

pinout (extended AI)
(figure), 1-9

SCB-68 E Series I/O Connector

pinout (extended digital)
(figure), 1-10

SCB-68 E Series I/O Connector

pinout (full) (figure), 1-8

quick reference labels (table), 1-2

connecting signals, 2-3
hazardous voltages (caution), 2-1
installation categories, 1-12 to 1-13
parts locator diagram (figure), 1-5, 2-2
printed circuit diagram (figure), 2-2

lowpass filtering, 5-7 to 5-16

adding components, 5-11 to 5-12

analog output and digital input

lowpass filtering, 5-12

differential lowpass filter, 5-12
single-ended lowpass filter, 5-12

applications, 5-13 to 5-14

antialiasing filtering, 5-13 to 5-14
noise filtering, 5-13

Bode Plots for ideal and real filters

(figures), 5-8

one-pole lowpass RC filter, 5-10 to 5-11
selecting components, 5-11
special considerations

analog input channels, 5-14
analog output channels, 5-14 to 5-15
digital trigger input signals,

5-15 to 5-16

square wave input signal

entry into filters (figure), 5-9
response of ideal filter (figure), 5-9
response of real filter (figure), 5-10

theory of operation, 5-7 to 5-10

manual. See documentation
maximum working voltage specifications, A-2
Measurement & Automation Explorer

(MAX), 1-11

measuring 4-20 mA current, 5-16 to 5-18

adding components

differential inputs, 5-18
single-ended inputs, 5-18

selecting resistor, 5-17
theory of operation, 5-16 to 5-17

NI 653X devices, quick reference label (table),

1-3, B-7

NI 660X devices, quick reference label (table),

1-4, B-6

NI 670X devices, quick reference label (table),

1-3, B-3

NI 671X/673X devices, quick reference label

(table), 1-3, B-4

NI 7811R/7831R devices, quick reference

label (table), B-8

noise

lowpass filtering, 5-13
minimizing environmental noise,

3-13 to 3-14

recommendations for signal

connections, 3-14