Intermec IF30

Chapter 5 — Using the IF30 GPIO Interfaces
76 IF30 Fixed Reader User’s Manual
Switching the High Side Using IF30 Power
In this example, an external indicator lamp with a 0.25A
maximum current is connected to the -Output and Ground pins,
and the corresponding +Output pin is connected to the +12
VDC source.
Switching the High Side
Switching the Low Side Using IF30 Power
For low side switching applications, the lamp 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.
Switching the Low Side
External
indicator lamp
0.25A maximum
+Output
+12V
Ground
- Output
External
indicator lamp
0.25A maximum
Ground
- Output
+Output
+12V