Hello and welcome!
I have a problem with connecting the system: 2 double Schneider stair switches + 2 light sources that are to be turned on and off independently from each switch.
There was such a beautiful "diagram" in the package of the stair switch:

Although I am a total layman, I have made 2 such systems in my life (with switches from another manufacturer), but here I have a problem. Unable to understand this scheme, I asked the manufacturer for help, and the following scheme was sent to me by e-mail (different from the one in the package, by the way):

Unfortunately, neither of the two variants gives any effect. Nothing lights up, nothing works.
By deduction, I used the most popular scheme of such an installation in google (I also used it with previously assembled systems) and adapted it to the specific arrangement of plugs in the Schneider switch. It looks like:

We're almost successful! But not everything works properly and here I am asking for help:
I can control the light source in one switch, turn it off, turn it on, but the second one only starts to function when the light source is on. Then with the second switch I can turn off this light source, turn it on again, but now the first switch is inactive when the bulb is turned off.
In other words: a switch can take control of the light source from the other switch only when the light source is lit. And so it is both ways. It is not possible to turn off the light with one switch and then turn it on with the other. The second switch must "wait its chance" until the light is turned on ;)
Please help, any hint, what am I missing here, what have I mixed up?
Regards
Arek
I have a problem with connecting the system: 2 double Schneider stair switches + 2 light sources that are to be turned on and off independently from each switch.
There was such a beautiful "diagram" in the package of the stair switch:

Although I am a total layman, I have made 2 such systems in my life (with switches from another manufacturer), but here I have a problem. Unable to understand this scheme, I asked the manufacturer for help, and the following scheme was sent to me by e-mail (different from the one in the package, by the way):

Unfortunately, neither of the two variants gives any effect. Nothing lights up, nothing works.
By deduction, I used the most popular scheme of such an installation in google (I also used it with previously assembled systems) and adapted it to the specific arrangement of plugs in the Schneider switch. It looks like:

We're almost successful! But not everything works properly and here I am asking for help:
I can control the light source in one switch, turn it off, turn it on, but the second one only starts to function when the light source is on. Then with the second switch I can turn off this light source, turn it on again, but now the first switch is inactive when the bulb is turned off.
In other words: a switch can take control of the light source from the other switch only when the light source is lit. And so it is both ways. It is not possible to turn off the light with one switch and then turn it on with the other. The second switch must "wait its chance" until the light is turned on ;)
Please help, any hint, what am I missing here, what have I mixed up?
Regards
Arek