32
IF1C
Fixed RFID Reader User Guide
Switching the High Side
Switch the Low Side with Reader Power
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.
Connect the external indicator lamp to the +Output and +
5
Vdc pins, and short
the corresponding -Output pin to ground.
Switching the Low Side of the Output Load
Switch the High Side with External Power
To use external power (5 to
24
Vdc) to switch the high side, connect the Ground
pin to the ground system of the external power supply, and connect the positive
side of the external supply to the +Output pin. The external indicator LED is
connected to the corresponding -Output and Ground pins.
External
indicator lamp
5m
A maximum
+Output
+
5
V
Ground
- Output
External
indicator lamp
5m
A maximum
Ground
- Output
+Output
+
5
V