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 pr5 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.
