Example embodiments relate to a method and a system for integrating electric elements of an elevator in a single module, e.g. in the door operator of the elevator, to reduce the number of components to be installed and to enable the electric elements of the elevator to be added to the door operator on the elevator car already at the manufacturing stage. The method may include intergrating electric components to be placed in the elevator, such as location elements, acceleration sensors and door zone sensors, with the door operator or some other module already at the manufacturing stage of the elevator, e.g. by placing the active parts of the sensors in conjunction with the door operator and the passive parts on the floor level side.