User`s manual

Chapter 5 — Using the IF30 GPIO Interfaces
72 IF30 Fixed Reader User’s Manual
About the GPIO Interfaces
The IF30 has four general purpose input and output (GPIO)
interfaces. You connect external controls such as motion sensors or
indicator lamps to the GPIO interfaces, which can then trigger IF30
operations.
Each interface is electrically isolated from the IF30 and designed for
low voltage DC loads. The IF30 can also supply 12 VDC at 0.5 A to
external devices.
How the inputs and outputs are used depends on the RFID
application software being used in the system. You need to coordinate
input and output control wiring with the software developer.
Accessing the GPIO Interfaces
You can access the GPIO interfaces through the control port on the
front panel of the IF30. The control port uses a standard 25-pin serial
cable. For port pin assignments, see “Port Pin Assignments” on
page 84.
You can also use the GPIO Terminal Block accessory to connect
devices to the IF30 GPIO interfaces. The block provides access to the
IF30 GPIO interfaces via standard screw terminals.
GPIO Terminal Block Accessory
For more information on the terminal block, contact your local
Intermec distributor.