Switching The High Side Using If2 Power; Switching The Low Side Using If2 Power - Intermec IF2 User Manual

Chapter 5 — Using the IF2 GPIO Interfaces

Switching the High Side Using IF2 Power

Switching the Low Side Using IF2 Power

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These methods are shown in the next examples.
In this example, an external indicator lamp (0.25 A maximum current)
is connected to the -Output and Ground pins, and the corresponding
+Output pin is connected to the +12 VDC source.
+12V
+Output
- Output
Ground
Switching the High Side
For low side switching applications, the lamp power is routed to all
the lamps in common and the low side of the load is routed to the
switch.
In this method, connect the external indicator lamp to the +Output
and +12 VDC pins, and short the corresponding -Output pin to
ground as shown.
+12V
+Output
- Output
Ground
Switching the Low Side of the Output Load
External
indicator lamp
0.25A maximum
External
indicator lamp
0.25A maximum
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