WAN access system capable of performing a line switching and a packet switching

摘要

The WAN access system has: a user connection process module section for converting analog signals to digital signals so as to process information in a switching system and processing a corresponding request of a user; a WAN connection process module section for selecting TDM buses so as to enable a line switching of a packet switching and extracting data to be transferred to an AAL1-processing/UTOPIA-multiplexing section; and a central control process module section for controlling the WAN access system, the central control process module section being connected to the user connection process module section and the WAN connection process module section to perform switching between the TDM buses, so as to enable the line switching and the packet switching, the central control process module section performing an AAL5 SAR processing and an SAAL processing, and an AAL1 processing and a UTOPIA bus multiplexing.