Abstract: A method for preparing for the start-up of a control unit for access devices, wherein at least one access device is communicatively connected to the control unit, wherein the control unit has a communication interface for information technology communication with a mobile terminal and/or has an input device for detecting an input from an installer or is in communicative connection with an input device for detecting an input from an installer. The method includes: a) detecting, using the control unit, an information technology signal or a change in an existing information technology continuous signal of a mobile terminal by the communication interface, and/or detecting an input from an installer using the input device, b) sending a trigger signal from the control unit to the access device, c) receiving the trigger signal using the access device, and d) performing an action using the access device depending on the received trigger signal.

Abstract: A door system for at least one door, the door system including door components, with one of the components being designed as a control unit. The control unit and at least one other door component are connected to one another via a first communication bus. An access system with an above door system and with a computing unit are related, with an image of the door system stored in the computing unit, the door components connected to the first communication bus each having an identifier. The identifiers are stored as part of the image of the door system in the computing unit and/or with past and current operating states of the door system stored in the computing unit. An access system with at least one of the above door systems is related, with at least one door system having an authentication device configured to receive an access attribute for authentication.

Abstract: A method for commissioning a door system with the door system having door components, with at least one door component being designed as a control unit, with the method including the following steps: storing an electronic configuration of the door system in the control unit and/or a mobile terminal, and carrying out at least one commissioning step by the electronic configuration.

Abstract: A method for installing door components includes at least the following steps: a. providing at least one preconfigured door system type by way of an electronic configuration system for selection by a user, wherein the at least one preconfigured door system type is able to be retrieved from a database by way of the electronic configuration system, wherein at least one preconfigured door system type is able to be preselected by the configuration system by way of at least one technical and/or functional user specification, wherein the door system type contains stipulated door component types, and b. electronically providing preconfigured technical data of the selected door system type in order to carry out the installation on site.

Abstract: An exhaust gas after-treatment device includes: a catalytic converter system, which includes a delivery side and a discharge side; and a container including an interior space and at least two openings, the at least two openings including a first opening and a second opening, the catalytic converter system being arranged in the interior space of the container, the first opening being connected with the catalytic converter system on the delivery side, and the second opening being connected to the catalytic converter system on the discharge side.