inout Dinplayer D01-MKII User Manual page 14

Logical input connected to ground (GND)
and internal power supply:
connect the Common input (pin 1) to the
DINplayer power supply (12-24Vdc). To
activate the input connect it to ground
(GND).
DINplayer User Manual v.2.3
Logical input connected to positive pole
and internal power supply:
Connect the Common input (pin1) to the
DINplayer power supply ground.
To activate the input connect it to the
DINplayer power supply positive pole.
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