| 摘要 |
PURPOSE:To make excellent the extension and manufacture, by incorporating the time sharing communication path constituting the time sharing communication system, digital trunk, and communication path control unit every size and by the junctor connection between the units. CONSTITUTION:The connection between a plurality of communication path units 20a-20v, 20x is made by the junctor switch units 26a-x, and the centralized control of each unit 20 is made at the central control unit 28. Further, each unit 20 exchanges the signal inmultiplex and time-shared at each time slot by the time sharing communication path unit 33 for arbitrary time slot, the dial signal identificatin and line usage condition ardigitally made at the digital trunk unit 34, and the interface between the units 33, 34 and the unit 28 and control signal are received and distributed at the communication path control unit 35. Further, the unit 26 takes a plurality of time slots a one group, the connection and replacement between the units 20 are made in group unit to extend the communication path unit. |
