National Instruments NI 951x User Manual page 37

Chapter 3 Signal Connections
NI 951x User Manual
Figure 3-4 shows an example of wiring the output to a sinking input device.
Figure 3-5 shows an example of wiring the output to a sourcing input
device.
Drive Enable or
Digital Output
Figure 3-4. Drive Enable Circuit Configured for Sourcing
Drive Enable or
Digital Output
Configured
For Sinking
Figure 3-5. Drive Enable Circuit Configured for Sinking
NI 951x
NI 951x V
sup
Drive Enable or
Digital Output
Configured
For Sourcing
COM
NI 951x
NI 951x V
sup
Drive Enable or
Digital Output
COM
3-8
NPN (Sinking)
Input Device
V+
In
Sinking
Circuit
V–
(Reference)
PNP (Sourcing)
Input Device
V+
Sourcing
Circuit
In
V–
(Reference)
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