Chapter 4
Connecting Lighting and External Devices
NI 177x Smart Camera User Manual
4-6
ni.com
Connecting to a Triggering Device
To connect to an external triggering device, connect the ground of the
NI 177x Smart Camera to the ground of the triggering device. Connect the
triggering device output to the NI 177x Smart Camera input.
Figure 4-5.
Connecting to an External Triggering Device
To wire a NI 177x Smart Camera output directly to the input,
you must add a pull up resistor to +24 V as illustrated in Figure 4-6.
National Instruments recommends a 3 K-ohm, 1/4 W resistor. Wire the
TRIG_IN– input to GND.
Figure 4-6.
Connecting to an External Triggering Device
TRIG_IN–
GND
Trigger o
u
t
Trigger gener
a
tor
NI 177x
S
m
a
rt C
a
mer
a
I/O connector
+24 V m
a
x
TRIG_IN–
+24 V m
a
x
NI 177x
S
m
a
rt C
a
mer
a
I/O connector
Extern
a
l
p
u
ll-
u
p re
s
i
s
tor
OUT0
Summary of Contents for NI ISC-1772C
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