User's Manual

page 3 of 6
3DGence | Przyszowice Office | Graniczna 66, 44-178 Przyszowice, Poland
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Headquarters: 3DGence Sp. z o.o. | Mickiewicza 29, 40-085 Katowice, Poland
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NFC Reader User Manual rev. 1.2
6. Mounting guide
Module has 6 holes with 3.2mm diameter to fit M3 screw. The pads around holes are not connected to
ground on the PCB. The pads diameter is 6mm, make sure screw head is not bigger than 6mm. If it is, there is a
risk of short circuit and inappropriate module functioning.
If the module is meant to be attached to metal surface, there is a risk that antenna will be detuned. To
prevent antenna detuning it is recommended to mount the module on non-metal surface, or apply at least 7mm
spacer between the module and metal surface.