Abstract: An aseismic (earthquake-secure) server rack is fastened to an earthquake frame in order to increase rigidity and is fixed to the floor at least via the earthquake frame.

Abstract: A server rack for holding a plurality of computer systems. In order to prevent the complex detachment of the cabling at the back when changing, maintaining or upgrading the individual computer systems, the server rack has a plugin apparatus (1) into which holding adapters (2) can be plugged which, in turn, can each hold a computer system. The consecutive slot numbers in the plugin apparatus are made available to the fitted computer systems as a location identifier.

Abstract: A module of an electrical device has a printed circuit board which may be pushed into the device and plugged onto a backplane of the device. A cuboid cage is connected to the printed circuit board of the device. The cuboid cage has a backplane arranged perpendicular to the printed circuit board of the device and is connected to the circuit board by means of connectors. The backplane of the cage has its own connectors for electrical connection to separate modular cage push-in units, in the form of cards or boards, which may be inserted into the cuboid cage of the device.

Abstract: A holding system for electronic modules, particularly for magnetic disk drives the holding system a withdrawable frame which can be inserted into a drive bay of an electronic data processing device, particularly a PC, and whose length corresponds to the depth of the drive bay, and further having a U-shaped bracket in whose U limbs first holes are provided for the passage of first fastening elements for fastening the bracket on lateral surfaces, directed parallel to the inserting direction, of the module, and second holes are provided for the passage of second fastening elements for fastening the bracket to the withdrawable frame. The fastening elements can be surrounded by damping elements consisting of an elastic material.

Abstract: An arrangement for the flexible design of a mounting rack is provided. A mounting panel is provided which accommodates partial-height modules as opposed to full-height modules. The mounting panel is connected to the rear wall of the rack and includes at least one guide rail for supporting the partial-height modules and securing the partial-height modules. A plurality of mounting panels may be disposed next to each other or a mounting panel may be disposed next to a full-height module.

Abstract: A ventilation system for a cabinet, such as a cabinet containing heat-producing components of a data processing system, those components being arranged stacked in the cabinet in tower fashion, has four identical fan units for drawing air over the components and discharging the air from the cabinet. The fan units are disposed at mid-height in the cabinet, and are divided into two pairs. The fan units in each pair have their respective air intake directions facing toward each other. The fan units of one pair are disposed directly one above the other, and the fan units of the other pair are disposed a distance apart, forming a horizontal air duct therebetween. Partitions are disposed in the cabinet for causing the fan units in the first pair to discharge air into the duct formed between the fan units of the other pair, the duct conducting the air to an exterior of the cabinet. The partitions cause the fan units of the other pair to discharge air in a direction out of the cabinet.

Abstract: A threaded rod is fitted to a plug-in assembly which can be inserted into a mounting rack, which threaded rod is aligned in the insertion direction and becomes operatively connected to a motor-driven threaded nut during insertion. The first thread pitches are designed such that the rod and nut latch on one another.

Abstract: The invention relates to a connecting rear wall (10) for subracks in electronic systems. Metal plates (14, 16) are mounted parallel to a wiring board (12) by being screwed thereto and simultaneously serve to feed the supply voltages and to screen high-frequency interferences. Cutouts (26) and openings (A) in the metal plates (14, 16) have a maximum dimension which does not exceed 1/10 to 1/20 of the wavelength of the interference signal of highest frequency which is to be screened.

Abstract: Roller-bearing-mounted telescopic track for drawers or the like, in which at least one inner track (4) is supported movably in an outer track (2). For this the inner track (4) is preferably constructed in such a way that the two rolling paths (2) directed outward are joined together by a web of an elastic material, preferably rubber. Thereby on one hand a damping of the running noises will be achieved. On the other hand, when there is imprecision of dimensions in the drawer or the cabinet receiving this, stresses between the tracks, which impair the rolling properties, are avoided, since the rolling paths can adapt to these imprecise dimensions within a certain range.

Abstract: A switch arrangement on an electrical apparatus includes a base with two parallel rows of receptacles, a switch module held plugged in, in the base, in which the pairs of contacts together with a switch rocker form a rocker switch, and a cover fastened releasably on the base in one single possible fastening position, which on the inside of its end wall carries operating lugs for the rocker switches.