2-4
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ni.com
Chapter 2
Power and I/O
Figure 2-2.
Connecting External Sinking Output Sensors to Isolated Inputs
Isolated Outputs
Caution
Do
not
power the load connected to the isolated outputs with any external
power supply greater than 30 VDC. Voltages greater than 30 VDC may damage the
NI Smart Camera.
Caution
The isolated inputs and outputs on the smart camera provide an easy
means for preventing ground loops that could degrade signal integrity. The isolation
on the smart camera is
not
safety isolation.
The isolated outputs can be used to drive external loads, as shown in Figures 2-3 and 2-4.
Figure 2-3.
Connecting an Isolated Output to a Sourcing External Load
S
en
s
or
Power
S
en
s
or
Common
NI 17xx
NPN (
S
inking)
O
u
tp
u
t Device
I
s
oIn(0)+
I
s
oIn(1)+
TrigIn–
I
s
oIn(0)–
I
s
oIn(1)–
S
o
u
rcing
Lo
a
d
I
s
oO
u
t+
I
s
oO
u
t–
NI 17xx
S
en
s
or
Power
S
en
s
or
Common
Summary of Contents for ISC-1762
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