Integration Guide
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Chapter 1 Introduction
Overview
TM
The RT207 is outstanding for ultra small design, low power consumption, good performance for even poor
printed 1D/ 2D bar codes and for on-screen bar codes even if the screen is covered with protective film or the
screen with low brightness level, with TTL232 interface.
Its specially suitable for devices with small space inside, for example: POS, PDA, or other kinds of portable
device, but of course, can be used for big devices such as kiosk terminals.
Illumination
The RT207 has two red LEDs for supplementary lighting, making it possible to scan bar codes even in
complete darkness. The illumination can be programmed On or Off.
The RT207 uses red LEDs for illumination, so the engine shows better reading performance on bar codes
printed in non-red colors. For applications involving red bar codes, it is advised to turn off the engine
’
s
illumination and use non-red supplementary lighting (such as green) instead. The user can conduct some
tests to determine the proper wavelengths to be used.
Aimer
The RT207 has a view finder that produces a solid circle-shaped aiming pattern to help the user to easily
position the target bar code within the engine
’
s field of view to increase scan efficiency. The aiming pattern
can be turned On or Off. It is advisable to turn it on when scanning bar codes.
