©
National Instruments Corp.
7
FP-DI-330 and cFP-DI-330
If the sourcing-output device is connected to a power supply,
connect the power supply to the IN
b
terminal of the [c]FP-DI-330.
Figure 6.
Wiring the [c]FP-DI-330 to an Externally Powered
Sourcing-Output Device
Connecting a Sinking-Output Device
to the [c]FP-DI-330
To connect a sinking-output device to the [c]FP-DI-330, connect
a power supply to the V and C terminals of the [c]FP-DI-330.
Connect the V
SUP
, IN
a
, IN
b
, and COM terminals to the
sinking-output device.
Figure 7.
Wiring the [c]FP-DI-330 to a Sinking-Output Device
+
–
Sourcing-
Output
Device
(PNP)
[c]FP-DI-330
V
SUP
COM
V
C
Input
Circuitry
IN
b
IN
a
Sinking-
Output
Device
(NPN)
[c]FP-DI-330
V
SUP
COM
V
C
Input
Circuitry
IN
b
IN
a
5–250 V
External
Power Supply
+
–
2 A
Max
