Satel - Lighting control from the staircase key and application

Hello

I would like to know if there is any solution on the market with which to control a lamp connected to a staircase key?

I know that if everything was on a separate circuit then I could do it with a bell key and Satel's INT-ORS.

Unfortunately it is wired as follows: The phase and communication of the staircase key and the outlet for the lamp in the first box and the communication in the second box. All wires are 3 conductors. There is also an 8-conductor alarm wire in each box.

I would like it to be possible to control it from the Satel app and also quite simply from a key.

Is there such a possibility?

Other ordinary light switches are wired in a similar way. From the switchboard, or rather from another light source to the switch and from the switch to the lamp. There is an 8-core alarm cable in the switch box.
Here I am also looking for a solution so that I can control the lighting without renovation.
I would like to use the Integra 64 control panel from Satel, as this is what I have.

Best regards

I came up with the idea that if I added a power cable (LGY 1.5) to the box where the light switch is located, I would be able to physically control the lighting with the switch and control it via a smartphone if I connected this added cable to a relay and then controlled this relay from the control panel outputs via MobileKPD2.
The only thing I would add is that the condition for these two independent feeds is that they would have to be from the same phase.
Is my reasoning correct? Is there anything else I need to bear in mind?

Since you have an alarm cable in the box, you connect its two wires to the switch and then to the control panel input. You do the same with the second switch, using the same input.
Connect the other two wires to the output of the control panel and to the relay in the box, which will short-circuit the lamp wires.

However, if the control panel were to be destroyed or fail, I would lose the ability to switch on the light.

damwojt wrote:

Phase and communication of the staircase switch and the outlet for the lamp in the first box and communication in the second box.

You can connect two stair switches (standard layout) and it will be without a switchboard.

And doing it via a phase switched from a relay connected to the control panel plus a standard stair connection is a bad idea? The phase in the standard circuit and the phase from the relay will be the same phase which will not cause a short circuit.
The only downside to this solution will be that when turning on the light from the phone you will also have to turn it off from the phone/manipulator.

Then the signal to the control panel from the switch would have to be given by another relay, because you cannot give 230V to the input.