Abstract: An enclosure for different subsystem variations of a data processing system has a box with front and rear regions separated by an interconnection carrier. The front is divided into standard-size bays for functional modules, while support modules slide into rear bays. A vertical central carrier contains electrical interconnections between the functional and support modules. An environmental module provides cooling air through the enclosure.

Abstract: A data processing system is shown packaged in an enclosure wherein the system frame or chassis and a cable carrier are separately fabricated and thereafter merged to provide an enclosure with open ends and a central cable carrier that mounts connections for the system components. The system components are slideably received by the enclosure and are self docking as the electrical connections with the system power and signal lines are completed as the components arrive at the fully inserted, latched position. Keying means are also provided to require the user to install the components at both the correct location and with the correct orientation.

Abstract: A structure is shown having three stages for guiding a system component into an operatively mounted position within an enclosure while simultaneously making a blind attachment of the electrical connectors to complete the power and signal circuits between the component and system contained within the enclosure. A coarse positioning structure includes a guide rail means for directing the component toward the operative, mounted position; an intermediate positioning structure functions within the tolerance of the coarse positioning means to substantially align the component including the electrical connectors and a fine positioning means aligns the electrical connectors for the final positioning as the component is latched into the operating position and electrical connections are completed. The three positioning functions are intitated serially.