National Instruments PC-OPDIO-16 Telescope User Manual


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Chapter 3 Signal Connections
© National Instruments Corporation 3-5 PC-OPDIO-16 User Manual
Signal Connection Example
Figure 3-2 shows signal connections for the load connected to an isolated output.
5.6 kΩ5.6 kΩ5.6 kΩ
PC-OPDIO-16
TLP121
Isolation
5.6 kΩ
+
-
Load
Digital Logic
+5 V
VCCO
VOUT
COM
I
OH
Isolated Ground
470 Ω
5.6 kΩ5.6 kΩ5.6 kΩ
Isolation
5.6 kΩ
+
-
Load
Digital Logic
+5 V
VCCO
VOUT
COM
I
OL
Isolated Ground
470 Ω
Supply
5–24 VDC
a. Load sinking current
b. Load sourcing current
PC-OPDIO-16
Supply
5–24 VDC
Figure 3-2. Signal Connection Example for Isolated Output
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