The present invention concerns a modular information system, comprising at least one base unit and a set of extension units, wherein each of said base unit and extension units comprises a housing with an essentially beam-like shape with a predefined height (H), a predefined depth (D) and a width (W), whereby the height and depth are in essence the same for all units, wherein the first lateral side of each unit is essentially open and the second lateral side of each unit is essentially closed with the exception of one or more slits for providing access to a neighbouring unit, wherein each unit comprises a board, said board comprising at least one inter-unit connector module which is aligned with and faces at least one of the slits, wherein the boards of two neighbouring units are connected via a board linking device stretching between said boards through said at least one of the slits, comprising a first connecting device at a first edge of the board linking device, which first connecting device is connected to the inter-unit connector module of a first of said two neighbouring units, the board linking device comprising a second connecting device at a second edge of the board linking device opposite the first edge, which second connecting device is connected to the inter-unit connector module of a second of said two neighbouring units, whereby the first connecting device and the second connecting device are electrically connected, preferably via a set of connection links on the board linking device.

A modular control unit (100) is adaptable, in terms of interface functions, for an electric motor selected from a predetermined number i of electric motors, in particular electric motors of the same power class. The control unit (100) has at least two printed circuit boards (L1, L2), selected from a set of N different printed circuit boards (L1, L2, . . . , LN). Interface functions, electrical components, electronic components or control units for the operation of the electric motor are located on the printed circuit boards.

A cage divider that is adaptable for different E3.S modules for insertion in a slot of a computing device is disclosed. The cage divider is one of a pair of cage dividers that define a cage enclosure for insertion of the E3.S modules. Each of the cage dividers includes a first side component plate attachable to the backplane of the cage enclosure. Each of the dividers includes a second side component parallel to the first side component and attached to the first side component. Each of the dividers includes an adjustable accessory held between the first side component and the second side component. The adjustable accessory is configured to be attached in a first position allowing accommodation of a first E3.S module or a second position allowing accommodation of a second E3.S module.

A modular system chassis can be made from a variety of individual chassis modules. Each chassis module can be configured using a set of parts for providing between two and five slots for electronic modules conforming with an open system standard. Chassis modules can be stacked to provide a modular system chassis for rapid development of a chassis for demonstration and/or prototyping of electronic devices using electronic modules conforming with the open system standard.

A toolless computing housing assembly includes an enclosure, front lid, and first side cover. The enclosure includes connected panels defining a front opening and internal volume, with front toolless coupling features along its front opening and side toolless coupling features along its panels. The front lid includes lid toolless coupling features that interact with the front toolless coupling features of the enclosure to facilitate the ready removal and reassembly of the front lid from and to the enclosure without the use of tools. The first side cover includes an outer face, inner face, and a first set of side cover toolless coupling features that interact with the side toolless coupling features of the enclosure to facilitate the ready removal and reassembly of the first side cover from and to the enclosure without the use of tools. The toolless computing housing assembly also includes a second side cover and mounting arrangement.