| 摘要 |
A switching control system for selectively controlling switching of power to utilization devices in which the latter are connected to control switch units by a cable having a smaller number of conductors than the number of utilization devices, each control switch unit having a number of contacts equal to the number of conductors less one. The system also includes a circuit selector unit connected to the cable and including a decoding means for determining the sequence of contact operation in a control switch unit and for controlling power supply to a selected utilization device, the number of the latter being substantially greater than the number of cable conductors.
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