The benefits of modular construction become apparent when installing the system. It is possible, for example, to install just the housing at first, when the building work is at an early stage. Lines, modules, and front plates can be added later – just before the building is ready to be used. Investment protection is an additional feature. If the surface of the system is damaged through vandalism, there is no need to exchange the entire door station, as the front can simply be replaced. This means significantly lower costs and expenditure on materials.