| 摘要 |
During the transmission of a high frequency signal from or to a transmitter/receiver pair via a low-voltage power supply network, a selector unit (4) is connected between the power supply network and the transmitter/receiver pair. Said selector unit has several inputs (7.1 to 7.4), two outputs (8.1, 8.2) and a control input (11.1). The inputs (7.1 to 7.4) are connected to the conductors of the low-voltage power supply network and the outputs (8.1, 8.2) are connected to the inputs of the transmitter/receiver pair. Several change-over switches (16 to 19) can be separately controlled in a simultaneous manner using the control input (11.1), in such a way that the selector unit (4) electroconductively connects the conductors of the low-voltage power supply network between which the high frequency signal is transmitted, to the two outputs of the transmitter/receiver pair. |
