| 摘要 |
<p>PURPOSE:To allow an exchange to easily cope with extension or the like of a terminal line by grouping terminal lines, providing a call control section and a relay packet multiplex section for each group and accommodating the relay packet multiplex section and the relay line connection section to a packet exchange circuit. CONSTITUTION:When a terminal line control section 2 receives a packet from a terminal line 1 connecting to the section 2, the section 2 checks its header to identify the type of the packet and when the packet is a data packet, the data packet processing is executed and identification information representing a circulation destination is added and the result is transferred to a relay packet multiplex section 7 via a common bus 6. Moreover, when the packet type is a call control packet such as call setting request or call release request, the packet is transferred to the call control section 5 via a common bus 6. When the relay packet multiplex section 7 receives transfer of the packet from the terminal line control section 2 or the call control section 5 in the group via the common bus 6, the packet is multiplexed and the speed is converted into a high communication speed, and the result is sent to the packet exchange circuit 4.</p> |
