| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To stably transmit and receive data and to accelerate the effective speed of data transmission, in a network of PLC communication. <P>SOLUTION: A PLC master unit modem 13 and a PLC repeater 16 are disposed at the entrance of a floor, island entrance PLC slave unit modems 30a, ..., and island entrance PLC master unit modems 31a, ..., for a narrow band are disposed at the entrance of a game machine island, and a PLC slave unit modem 9 for the narrow band is disposed in a game machine 8. Further, the PLC master unit modem 13 is connected to the pre-branch port of a first branch adapter 15, the PLC repeater 16 is connected to the post-branch port of the first branch adapter 15, and the PLC repeater 16 is connected to the island entrance PLC slave unit modem. The island entrance PLC slave unit modem is connected to the island entrance PLC master unit modem by a LAN cable, the communication line connection port of the island entrance PLC master unit modem is connected to the pre-branch port of a second branch adapter 7, and the PLC slave unit modem 9 is connected to the post-branch port of the second branch adapter 7. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
