An illustrative example embodiment of a switch monitoring device includes a controller configured to command a switch to enter at least one of a conducting state and a non-conducting state. A monitoring circuit conducts current when the switch is in the conducting state. A comparator provides an output indicating a relationship between a voltage of a selected portion of the monitoring circuit and a threshold voltage. The controller determines a condition of the switch based on the output of the comparator and the command.

A data capture device for a building system has a housing in which a display device, an optical reading device, and a first reading device are arranged and which are communicatively connected to a control device arranged in the housing. The optical reading device is embodied to optically detect information from a first information carrier, wherein the optical reading device is arranged in such a way that light from the direction of the front side of the housing, which is accessible to a user, can be captured by an image sensor of the optical reading device. The first reading device has a first antenna in order to detect information from a second information carrier by means of radio communication, the first antenna comprising an air coil which has an inner space. The image sensor of the optical reading device is arranged entirely or partially in the inner space of the air coil.

A personnel movement system is provided and includes a personnel movement element to transport passengers from one location to another, a controller configured to control operations of the personnel movement element in accordance with received signals and a touch screen interface operably disposed at an entrance/exit of the personnel movement element. The touch screen interface is operable in at least a first mode and a second mode to send the signals to the controller and is configured to be toggled therebetween.

A call input device for an elevator system includes at least one call input facility having at least one directional call button, such as an up-direction call button and/or a down-direction call button. The call input device further includes a storage medium and an output region. During operation, when the directional call button is actuated, instructions for call input by a user stored in the storage medium are output in the output region.

An elevator operating device for inputting a travel request on a floor of a building has a touch-sensitive screen system, which has a screen region that is visible to a passenger, and a central control device. The central control device controls the screen system in a first mode, to display a first graphical user interface, and in a second mode, to display a second graphical user interface. The first graphical user interface comprises one or two travel direction symbols. The second graphical user interface comprises an edge zone for symbolizing a waiting time until the elevator car arrives on the floor, and a center zone for symbolizing an occupancy of the elevator car by passengers, wherein a displayed degree of filling of the center zone symbolizes an occupancy of the elevator car.