We’ve encountered a problem after we tried to install a Nuki Opener for one of our customers.
We need your help to deal with this problem.
To open the entrance door of the building if someone rings to our customer’s apartment, the receiver MUST be activated and the “0” key must be pressed. If the receiver ISN’T picked up, there aren’t any operations that can be done.
The power supply is provided on 2 ethernet cable wires.
We’ve chosen the following settings to configure the Nuki Opener:
Model: Bus (Generic)
We’ve also done the following electrical wiring:
The “+” wire (red) from the power supply of the intercom has been wired with the: RED and YELLOW wires of the Nuki Opener.
The “-” wire (green) from the power supply of the intercom has been wired with the: BLACK wire of the Nuki Opener and the GREEN wire that goes to the intercom.
The RED wire that goes to the intercom has been wired with the: ORANGE and GREEN wires of the Nuki Opener.
All has been done according to the electrical wiring diagram presented in the manual (also attached below) but the Opener can’t open the door.
We’ve also configured the Nuki Opener to the point that the app was asking “If the intercom needs to be activated” and tried at least 5 times but with no luck. It configured correctly until the last step where it should’ve opened the door, a job that it couldn’t handle.
I’ve attached pictures with the PCB of the intercom found out into the customer’s house. What we’ve found out so far:
- In the photo shown below (“Intercom wiring 1”) you can see the PCB wiring of the part that gets the power supply.
The red and green cables that come out from that RJ11 socket are the power lines. Also, they’re the same lines that the signal is transmitted to the intercom found out at the entrance of the building.
The red and black cables combination that is wired to that aluminum part, power up the “ding-dong” speaker.
After we’ve cut the yellow cable, the phone continued to work but it wouldn’t allow us to open the entrance door. To open the door when someone rings at the intercom found out at the entrance of the building, the receiver must be picked up and the “0” key must be pressed.
So we can consider that the yellow cable is used to send the signal required to open the entrance door.
After we’ve cut the purple cable, the phone didn’t work anymore. No actions could have been made anymore with that cable being cut.
So we can consider that the purple cable is used to power up the phone (found out into the customer’s house).
If we take a look at the photos shown below (“Receiver wiring 1”) we can see the PCB wiring for the mobile part (receiver). Between the previous part and this one, the connection is made with a cable that has 4 wires: yellow, black, purple, green. Those are the cables presented above.
One possible solution we’ve found requires an Arduino Nano to be used but we would like at least another one.
Could you please provide us with an answer to this situation and how should we solve it?