| 摘要 |
In addition to one or more subassemblies, an extra identical subassembly is provided. A multiplexer is connected to the inputs to the subassembly and connects the input bus of one subassembly to the following subassembly. The outputs of the subassembly are connected to a multiplexer which receives the output bus of each subassembly from the respective following subassembly. In the event of a defect in one of the subassemblies, the multiplexers are switched to replace the faulty subassembly with the following one, and so on unit the last subassembly is replaced by the extra subassembly. |
