| 摘要 |
<p>The system has an electronic bus provided with two wires. Central product and secondary products respectively have programmable processing units (F1.1, F2.1) e.g. microprocessors. Information and order coming from the processing unit (F1.1) communicate at voltage levels on the bus towards each secondary product. Information and order emanating from the processing unit (F2.1) are transmitted towards the bus at current level to the central product. The central product has a protection stage (F1.3) for protecting against short-circuit and excess load.</p> |
