摘要:
Each printed circuit board (PCB) (16) on a backpanel (12) has an associated set of power supply studs (26) and power supply pins (24) at an edge (28) ofthe backpanel. The PCBs can be powered commonly via power supply buses (300 to 360) interconnecting the studs. Alternatively, the PCBs can be powered individually via respective power supply PCBs (44) which are inserted into connectors formed partly by the power supply pins and partly by pins (50) on an additional, power supply, backpanel (46) which is mounted to extend contiguously from and in the same plane as the first backpanel. The two arrangements can be combined to power groups (54, 56) of PCBs individually with all of the PCBs in each group being powered commonly.
摘要:
Computer modular frame with retractable stabilizers constituted by laying feet shiftable the one parallely to the other in the direction of the minimum encumbrance in plan of the frame, and movable, the one independently from the other to a laterally shifted position that, increases the frame laying area and consequently increases the frame stability, and to a retracted position which allows the frame juxtaposition to laying walls or other frames in order to form systems of juxtaposed modular units.
摘要:
To minimize the weight of a magnetic tape recorder chassis and cabinet assembly, a wire frame chassis (18) carrying printed circuit board guides (20) and connectors (22) is mounted to one side of a sand cast bezel (24), and polyurethane wall panels (16) are secured to the wire frame. A cabinet cover and underlying tape transport assembly are hinged to the bezel to enable pivoting away from the wire frame, exposing circuit boards for servicing. The "open air flow" characteristic of the wire frame chassis (18) helps cool critical electrical components.