©
National Instruments Corp.
5
FP-DI-330 and cFP-DI-330
Connecting Devices to the [c]FP-DI-330
Figure 3 shows how to connect several types of devices to channels
of the [c]FP-DI-330. Devices connected to V
SUP
and COM share a
common potential.
Figure 3.
Connecting Devices to the [c]FP-DI-330
+
–
Sinking-
Output
Device
(NPN)
[c]FP-DI-330
V
SUP
COM
V
C
Input
Circuitry
IN
b
(Ch 1)
IN
a
(Ch 1)
+
–
Sourcing-
Output
Device
(PNP)
V
SUP
COM
Input
Circuitry
IN
b
(Ch 2)
IN
a
(Ch 2)
Sinking-
Output
Device
(NPN)
V
SUP
COM
Input
Circuitry
IN
b
(Ch 3)
IN
a
(Ch 3)
Sourcing-
Output
Device
(PNP)
V
SUP
COM
Input
Circuitry
IN
b
(Ch 4)
IN
a
(Ch 4)
Switch
V
SUP
COM
Input
Circuitry
IN
b
(Ch
n
)
IN
a
(Ch
n
)
5–250 V
External
Power Supply
+
–
2 A
Max
To Next Channel
