Intermec IF2 Manual do Utilizador descarregar pdf (Página 88)

Chapter 5 — Using the IF2 GPIO Interfaces

78 IF2 Network Reader User’s Manual

These methods are shown in the next examples.

Switching the High Side Using IF2 Power

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.

Switching the High Side

Switching the Low Side Using IF2 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.

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 of the Output Load

External

indicator lamp

0.25 A maximum

+Output

+12 V

Ground

- Output