| 摘要 |
<p>PURPOSE: To improve the efficiency of a system by selectively connecting a video signal packet through an output circuit to a customer and using different video exchange devices and a busket network while adjusting them. CONSTITUTION: Exchange modules 501, 1000 and 6000 are connected to plural customer lines and trunks 23 and 24 and the lines and trunks 23 and 24 connected to these modules are mutually connected or the inter-customer connection of other exchange modules 501, 1000 and 6000 is completed through a time multiplex exchange device 10 in cooperation with a central control unit 30 and the different exchange modules 501, 1000 and 6000. The exchange module 501 is a circuit exchange module and connected through the lines 23 and 24 to an analog telephone customer. Further, the exchange module 501 performs time slot exchange to a digitized customer signal and performs the connection of customer in cooperation with the other exchange modules 1000 and 6000.</p> |
