Bosch BMCT-SLZ Manual page 12

Activation/deacti-
vation
Connection
L
N
S1
S2
Q1
Q2
PE
If the module has not been paired with the
Smart Home controller and configured with
the light control unit function, the inputs
S1/S2 do not trigger any switch commands.
Description
External conductor
Neutral conductor
Switch
–
Lamp
-
Earth conductor