Hello, I have a problem replacing the intercom in a block.
Unfortunately, I do not know what the central unit is, I don't know much about it.
Until now I had the one in the picture
quite strangely connected, i.e. from the wall a 2-core twisted cable with a 4-core cable in pairs (2 to 1). Everything wrapped in a medical plaster. Interestingly, it's the same for a neighbor.
I bought a new intercom in Castorama, according to the seller it should work.
Model Analog uniphone by Cyfral smart model 824199 as in the picture
according to the instructions it should be connected to L1 and L2 but nothing works.
Is this a problem of compatibility of this camera with the control panel or is it connected badly, please help.
ps. If compatibility can you recommend something? Thanks in advance.
Unfortunately, I do not know what the central unit is, I don't know much about it.
Until now I had the one in the picture

quite strangely connected, i.e. from the wall a 2-core twisted cable with a 4-core cable in pairs (2 to 1). Everything wrapped in a medical plaster. Interestingly, it's the same for a neighbor.
I bought a new intercom in Castorama, according to the seller it should work.
Model Analog uniphone by Cyfral smart model 824199 as in the picture

according to the instructions it should be connected to L1 and L2 but nothing works.
Is this a problem of compatibility of this camera with the control panel or is it connected badly, please help.
ps. If compatibility can you recommend something? Thanks in advance.