PLX Devices SM-FP - Manual (Page 4)

Users Guide: iMFD Sensor Module
Version 1.0 March 14, 2008
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While the power input of the lamp and buzzer can be 12V or 3.3V, the ground side of the lamp or the buzzer needs to be
connected to the “WK” lead of the sensor.
(Figure 8, connection illustration of lamp or buzzer)
Caution: please follow the power input ratings indicated on the buzzer or the lamp to decide whether
using 12V or 3.3V power.
(Figure 9, location of “WK” lead for the grounding of lamp or buzzer)