4. External button switch
External switch functional description
After an external button (switch on the pic. above) is pushed (switch OFF/ON), The "departure switch" occurs regardless of configuration settings. After an external button is released (switch ON/OFF) "departure switch" ends automaticaly after preset delay time by adjustable rotary trimmer from approx. 1 sec. up to 6 sec. regardless of configuration settings. NC and NO on the pic. below in this case refers to the door state if switch is in OFF state.
Both connectors (for external button and door lock) are galvanically isolated from each other and main electrical circuitry of the main communicator board.
How to connect
Examples on how to connect lock in case of one power supply: