Apparatus for coding the site of insertion of a plug-in module into a sub-rack

摘要

An arrangement for coding a plug-in space of a plug-in module in a module rack by using a layout of at least one coding pin and at least one associated coding hole. The coding hole has at least one holding bracket through which extends a fastening screw, and the module rack has at least one front profiled rail which has a longitudinal groove into which there is inserted a perforated strip having equidistant holes. The holding bracket has a receiver for the coding pin, which receiver has an internal polygon. The coding pin is displaceable within the receiver and has a corresponding external polygon. The coding pin is provided with a longitudinally extending coding rib at its shaft. Also provided is at least one coding plug which has at least one pin for the introduction into a hold of the perforated strip. The coding plug has the coding hole for the coding pin and a through hole for the fastening screw. The coding hold is provided with an edge recess for the coding rib.