| 摘要 |
Disclosed is a communications system between data concentration units (DCU). The system of the present invention comprises: a pole transformer for converting a high-voltage power signal, which is applied through a power line, to a low-voltage power signal; and a DCU for modulating a communications signal to the low-voltage power signal, which is applied by the pole transformer, and transmitting the same to the DCU installed on an electric pole having a transformer installed in an adjacent area through the pole transformer. |
