| 摘要 |
PURPOSE:To install more terminals economically, by providing a data inserting function between a packet switching network and a terminal. CONSTITUTION:A packet from a terminal A is connected to a packet switching network through a signal line 5A without time delay. A packet, when sent by a terminal B, is detected by a detecting circuit 8. The packet from the terminal A, having an inserted pattern showing halfway disregard, is disregarded halfway. Then, the packet from the terminal B is sent to the packet switching network PSN. The insertion of the disregard pattern takes some time after the packet from the terminal B is detected by the detecting circuit 8, so packets sent from the terminal are stored in a buffer FIF09 temporarity. A break of packets and a clock is intercepted to prevent the transmission of packets to the terminal A. |
