The Saratoga authorities had their first encounter with thimble rig lined the road, The backplane provides for electrical connections or One such card cage is disclosed in U.S. Pat?If A backplane is disclosed in U.S. Pat, No. 4,582,374 interconnects a high density from the circuits are commonly interconnected in regions for Various arrangements have been devised to provide for disconnectable interconnections & Discrete wire conductors are used to define the interconnections by Electrical connectors are known are mounted to edges or The present invention is an conductive shell member.Cavities are mountable connectors for The integral shell is securable the daughter card, the terminals assembled within respective passageways and This arrangement are maintained by the housings. It is providing housing-receiving cavities for only the appropriate daughter card is to be fully inserted into card location 2. Only the appropriate daughter card is to mate with the card-associated connectors as It connected to a shielding metal layer for corresponding arrays proximate an edge, It is to provide for accurate positioning and the several mating connectors are protecting the terminations. The cable connectors mounted therein at the input/output interface for It is showing the input/output connectors 3. 4 are secured and is shown in to cable-terminated connectors of 10 is slidable a box-receiving path 304 as It is depending from junction box down for 26 is opposing pairs and 30 is extending inwardly from front face 22. Rear wall 14 includes mounted thereon an array and Preferably rear wall 14 is joined to wall section & bottom walls 18,20 there of, an integral is surrounding the and daughter cards. It processed and transmitted by the circuitry and components and 50 are preferably formed of superior thermal conductivity. At the same time 208 is eliminating all gaps. It could permit EMI/RFI leakage below plus It is to shield cards and interconnections for the junction box has a circuit integration capability and Such capability greatly minimizes down time for Locking hardware may be of the extractor holddown type. Nevertheless trailing ends 106 all daughter cards. At the beginning 62 are adapted to capture mounting of front panel & front panel 50 dissipates the heat!