Digital Signal Processing Reference
In-Depth Information
11.5.3
Portable readers
Portable readers are used for the identification of animals, as a control device in public
transport, as a terminal for payments, as an aid in servicing and testing and in the
commissioning of systems. Portable readers have an LCD display and a keypad for
operation or entering data. An optional RS232-interface is usually provided for data
exchange between the portable readers and a PC.
In addition to the extremely simple devices for system evaluation in the laboratory,
particularly robust and splash-proof devices (IP 54) are available for use in harsh
industrial environments.
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