| 摘要 |
PURPOSE:To connect one set of facsimile equipment to both a conventional subscriber line and a private line by providing a start signal generating circuit and a start signal detecting circuit for the use of the private line. CONSTITUTION:A facsimile line signal 17 is outputted as a conventional line signal 19 via a line switching circuit 2. A start signal 22 from a start signal generating circuit 3 is inputted to a relay 30 of the switching circuit 2 and a private line signal 18 from the relay 30 is given to the start signal detecting circuit 4 and the private line. Furthermore, a hook state detecting signal 10, a ring detecting signal 11, a facsimile line relay control signal 16 and a start signal detecting signal 14 are applied to a control circuit 1 and a facsimile external start signal 15, a start signal generation command signal 13 and a line switching signal 12 are outputted. Through the constitution above, one set of facsimile equipment is connected to both the conventional subscriber line and the private line. |
