momentary wall switch introduce:
LED Supply Power: DC12V
S1/K1–S6/K6:key line
KCOM:key Common
D6–D1:LED display
DCOM:LED Common
Note:”Kx” with “KCOM” is dry contactor.
D6–D1:LED display
DCOM:LED Common
Note: D6–D1: input 0V (GND) Then LED ON
DCOM: +12V
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