12-06-2020, 03:16 AM
OK, I understand you. if you want to use your old switch panel, I think that is not self-reset type (instantaneous switch). There is a way to use by KC868-COL logical controller, not to use "switch terminal board". But your line must re-wire. Because your old line is connected to L and N with load. Now you can give the KC868-COL input port a dry node signal, no power. So you need your wall swich line to KC868-COL's digital input directly and set the IFTTT command for input port control lamp so that can manual control lamp ON/OFF.
if you have 3 or 4 different location for 3 or 4 KC868 relay controller. You will need 3 or 4 KC868-COL, because it's one by one, if 1 relay controller will have 1 KC868-COL, if 4 relay controller will need have 4 KC868-COL. relay controller and KC868-COL connect by RS232 cable directly, so that work without internet. Yes, just like voice module for relay controller.
if you have 3 or 4 different location for 3 or 4 KC868 relay controller. You will need 3 or 4 KC868-COL, because it's one by one, if 1 relay controller will have 1 KC868-COL, if 4 relay controller will need have 4 KC868-COL. relay controller and KC868-COL connect by RS232 cable directly, so that work without internet. Yes, just like voice module for relay controller.