| 摘要 |
The present invention relates to a PLC 3-phase coupling device for an external modem. Provided is technology including the PLC 3-phase coupling device installed between a 3-phase 4-wires (R, S, T, N) incoming bus, which is a physical medium for power line communication (PLC), and an external modem transceiving data through PLC. The device delivers a PLC signal of the incoming bus to the external modem without a quarter loss. The present invention is capable of maximizing PLC performance between a data concentration unit (DCU) and the external modem. |
