Abstract: Distributor unit for attaching and connecting electrical lines in telecommunication systems. A rail (5) is secured in two different positions in a simple manner from a servicing side and is provided for the acceptance of accessory equipment (15). The two positions are in the upper end region of the carrier part (1) vertically aligned with its long side in that the rail (5) is hooked to or, respectively, plugged onto the upper edge of a plate (4) that is rigidly connected to the carrier part (1). The edge of the plate (4) provided for the plug fastening of the distributor unit extends beyond the upper edge of the carrier part (1) in a longitudinal direction. Different accessory equipment is easily attached to the front side of the rail independently of the wiring of the distributor. The parts of the distributor normally covered by the planar extent of the rail toward the servicing side are accessible at any time in the respectively other position of this rail.

Abstract: A package for enclosing and mounting a multichip module to a printed wiring board including a ceramic base with an elevated peripheral ledge constructed of a material, having a coefficient of thermal expansion differing substantially from the coefficient of thermal expansion of the material of a serpentine sidewall mounted to the base, and having a lid mounted to the top of the sidewall. The package includes electrical contacts extending through the ledge for connecting the multichip module to the circuit board. The sidewall is a series of interconnected short segments having acute angles at their interconnection forming a pleated shape.