Signal connection descriptions – National Instruments 700 User Manual

Page 22

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Chapter 3

Signal Connections

© National Instruments Corporation

3-3

DAQCard-700 User Manual

Signal Connection Descriptions

Pin

Signal Name

Direction

Description

1–2

AIGND

Analog Input Ground—These pins are connected to the analog
input ground signal.

3–18

ACH<0..15>

Input

Analog Input Channels 0 through 15—These channels are in
single-ended mode.

19

DGND

Digital Ground—This pin is connected to the digital ground
signal.

20–21

NC

Not Connected—These pins are not connected.

22–29

DIN<0..7>

Input

Input Digital Data Lines 0 through 7—DIN7 is the MSB,
DIN0 the LSB.

30–37

DOUT<0..7>

Output

Output Digital Data Lines 0 through 7—DOUT7 is the MSB,
DOUT0 the LSB.

38

OUT1*

Output

Counter 1 Output—This pin is the inversion of counter 1
output.

39

EXTINT*

Input

External Interrupt—This pin is used for input of the external
interrupt signal.

40

EXTCONV*

Input

External Control—This pin is used for input of the external
control signal to trigger A/D conversions.

41

OUT0

Output

Counter 0 Output—This pin is the output of counter 0.

42

GATE0

Input

Counter 0 Gate Input—This pin is the gate input for counter 0.

43

OUT1

Output

Counter 1 Output—This pin is the output of counter 1.

44

GATE1

Input

Counter 1 Gate Input—This pin is the gate input for counter 1.

45

CLK1

Input

Counter 1 Clock Input—This pin is the clock input for
counter 1.

46

OUT2

Output

Counter 2 Output—This pin is the output of counter 2.

47

GATE2

Input

Counter 2 Gate Input—This pin is the gate input for counter 2.

48

CLK2

Input

Counter 2 Clock Input—This pin is the clock input for
counter 2.

49

+5 V

Output

+5 Volts—This pin provides +5 VDC. The +5 V supply is
fused at 1 A, which is the maximum current available.

50

DGND

Digital Ground—This pin is connected to the digital ground
signal.

*

Indicates that the signal is active low.

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