| 摘要 |
A SIGNAL ADAPTER (10) INCLUDING A FIRST CIRCUIT BOARD (2) ADAPTED TO PROCESS WIRED TV SIGNAL AND TELEPHONE SIGNAL FROM A FIRST COAXIAL CABLE; A FIRST CASING (1) HOLDING THE FIRST CIRCUIT BOARD (2) AT ITS ONE SIDE AND HAVING A PLURALITY OF CONNECTORS (12) AT ITS OPPOSITE SIDE ADAPTED TO TRANSMIT PROCESSED SIGNAL FROM THE FIRST CIRCUIT BOARD (2) TO END USERS; A FIRST COVER (3) FASTENED TO THE FIRST CASING (1) AND COVERED OVER THE FIRST CIRCUIT BOARD (2), HAVING A MAIN SIGNAL INPUT PORT (32) THROUGH WHICH WIRED TV SIGNAL AND TELEPHONE SIGNAL ARE TRANSMITTED FROM A COAXIAL CABLE TO THE FIRST CIRCUIT BOARD (2), AND A MAIN SIGNAL OUTPUT PORT (33) THROUGH WHICH WIRED TV SIGNAL AND TELEPHONE SIGNAL ARE TRANSMITTED FROM THE FIRST CIRCUIT BOARD (2) TO A NEXT SIGNAL ADAPTER THROUGH A SECOND COAXIAL CABLE; A SECOND CIRCUIT BOARD (6) ADAPTED TO PROVIDE THE NECESSARY TELEPHONE SIGNAL WORKING POWER SUPPLY TO THE FIRST CIRCUIT BOARD; A SECOND CASING (5) EXTENDED FROM ONE SIDE OF THE FIRST CASING (1) AND ADAPTED TO HOLD THE SECOND CIRCUIT BOARD (6) ON THE INSIDE; AND A SECOND COVER (7) FASTENED TO THE SECOND CASING (5) AND COVERED OVER SAID SECOND CIRCUIT BOARD (6).
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