Samsung SSA-R1001 Guía Rápida De Inicio página 9

If installing more than one reader side by side or front and back
Minimum
20cm
#Reader 2
#Reader 1
BACK TO BACK
<Front and Back>
INSTALLATION
If you install more than one reader side by side or
front and back, the read range may be reduced. In
this case, if you present a card to one reader, the
other reader may recognize the same card, meaning
both readers read the same card simultaneously.
#Reader 1
To avoid this problem, keep at least 20 cm of space
between the two readers.
Minimum
20cm
#Reader 2
<Side by Side>
QUICK GUIDE
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