Patent ID: 8472172
Filing Date: 2013-06-25
Classification: H05K

Abstract:
1. A subassembly for an expandable automation device, comprising: a housing which accommodates a central processing unit, a voltage supply, an interface for connecting external input and output modules, and internal input and output modules; three electronic subassemblies which are each arranged on one of a first carrier, a second carrier and a third carrier, wherein the third carrier is arranged between the first carrier and the second carrier, the first carrier being configured to accommodate an electronic subassembly of the central processing unit, the second carrier being configured to accommodate an electronic subassembly of the internal input and output modules, and the third carrier being configured to accommodate an electronic subassembly of the voltage supply and the interface for connecting external input and output modules; and display means formed as optical waveguides for focusing light generated by optical display elements and for contactless transmitting the light to a front side of the subassembly, the optical waveguides being arranged only on the first and second carriers.