ABB -Welcome M Mode D'emploi page 8

ABB-Welcome M
3->OFF, 4->ON=call guard unit / call indoor station;
3->ON, 4->ON=switch on lighting / call guard unit.
15 Adjust the loudspeaker volume.
16 Adjust the door lock release time, 1-10s (available for the
lock connected with the Lock-GND)
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Terminal description
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