3-12
|
ni.com
Chapter 3
Connector Pinouts
Wiring an Isolated Input
You can wire an isolated input to a sourcing output device, as shown in the Figure 3-9.
Caution
Do
not
apply a voltage greater than 24 VDC to the isolated inputs. Voltage
greater than 24 VDC may damage the NI CVS-1459RT.
Figure 3-9.
Connecting an Isolated Input to a Sourcing Output Device
Wiring an Isolated Output
The digital output circuit sources current to external loads, as shown in Figure 3-10.
Caution
Do
not
draw more than 35 mA each from 5 V isolated outputs. Do
not
draw more than 80 mA each from 24 V isolated outputs.
Figure 3-10.
Connecting an Isolated Output to an External Load
V
REF
C
I
S
O
NI CV
S
-1459RT
Inp
u
t
S
o
u
rcing
O
u
tp
u
t
Device
C
u
rrent
Limiter
Power
Su
pply
+
–
Digit
a
l O
u
tp
u
t
V
I
S
O
C
I
S
O
V
CC
NI CV
S
-1459RT
Lo
a
d
Overc
u
rrent
Protection Circ
u
it
