Importance

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Abstract

A novel plug-in card module for use in a rack module having means for supporting a plurality of such modules in an abutting side-by-side relation. The plug-in module comprises a printed circuit board having at least two pairs of card receiving and guiding rails transversely disposed thereon. Each of the guide rail pairs comprise first and second oppositely-disposed elongate rails removably secured to the printed circuit board. The plug-in module preferably includes at least first and second electrical connectors longitudinally disposed on the printed circuit board in back-to-back or side-by-side relation, each of the electrical connectors disposed adjacent an associated pair of elongate guide rails. To provide increased modularity and ease of circuit component replacement, the plug-in module includes a plurality of individually-removable electrical circuit boards. Each electrical circuit board is slidably supported in a pair of elongate guide rails and includes a leading edge received in the associated electrical connector, and a rear edge having a locking mechanism for locking the electrical circuit board in the pair of elongate guide rails. The module further includes a faceplace having an ejector mechanism for facilitating removal of the module from the rack module.

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First Claim