Wiring an Isolated Output
The digital output circuit sources current to external loads.
Caution
Do not draw more than 35 mA each from 5 V isolated output. Do not
draw more than 80 mA each from 24 V isolated outputs.
Figure 11.
Connecting an Isolated Output to an External Load
Digital Output
CVS
Load
Overcurrent
Protection Circuit
C
ISO
V
ISO
V
CC
Connecting to Differential I/O
The NI CVS-1459 accepts differential (RS-422) line driver inputs. Each of the 2 differential
I/O can be configured as an output. Use shielded cables for all applications. Unshielded cables
are more susceptible to noise and can corrupt signals.
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NI CVS-1459 User Manual