Opener Installation for Paili

Hi All,
I’m trying to install the Opener on an obscure video door bell. I do not even know if it is a BUS or analogue system. Documentation is scarce however I did manage to get hold of an installation document. Any assistance would be great.

Paili Video doorphone Manufacturer - PVA-836M-C5-7W

Unfortunately I cannot upload the user manual. this is what I have for the monitor unit.