| 摘要 |
PURPOSE:To attain efficient utilization of a channel by storing transmission information requested from a terminal device in a slave station, forming the information into a packet while a destination slave station and a terminal device name are added and transmitting the result to other slave station via a satellite through an assigned channel by a master station. CONSTITUTION:The information such as a cell set request, an opposite party dial and various request serives or the like from a terminal device TE0 is received by a signal transmission/reception circuit 21 in a slave station 20, and the information is transferred to a CPU22. When the CPU22 discriminates that the said information requires no instantaneousity, the CPU22 gives a command to a changeover switch 23 and fetches the information from the terminal device TE0 via a storage line control circuit 26. The CPU22 adds a destination slave station name, a terminal station name and an opposite party dial number or the like to the said information as a header to form the result into a packet and stores it in a buffer memory 27. A satellite link controller 25 uses a pre-assign channel TP installed fixedly and requests the assignment of a demmand assign channel TD to the master station 4 in the stage stored to some degrees, transmits a packet group to other slave station via a satellite 5 through the assigned TD and a destination slave station receives it. |
