Epson BrightLink 475Wi Installation Manual page 5

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Before installing the Touch Unit, verify that the installation location meets the following conditions:
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The Touch Unit can be secured to the surface with magnets or screws.
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The surface is flat, smooth, and unwarped with no more than 0.2 inches (5 mm) of unevenness in any
direction on the screen surface.
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When installing on a whiteboard, install the Touch Unit within the frame of the whiteboard.
Make sure there are no obstacles, such as cables, or protruding objects such as whiteboard trays, pen
holders, or thick frames in the shaded areas in the following figure. The Touch Unit will not operate
correctly if anything is obstructing the infrared signal.
4.0 in. (100 mm)
0.2 in. (5 mm)
Correct position
0.8 in. (20 mm)
5
Incorrect position
4.0 in. (100 mm)