NETWORK SYNCHRONIZATION ARCHITECTURE FOR A BROADBAND LOOP CARRIER (BLC) SYSTEM

摘要

A combined wide area network (WAN) port/synchronization unit that receives inputs including data and timing information and that synchronizes the data for transmission. The unit includes the following components. A network interface receives the input and removes data and primary timing information from the input (402). A data-path function processes the data(404). A reference selection unit receives timing information from the network interface as well as timing information from a secondary combined WAN port/synchronization unit(406). A synchronization control unit selects the most reliable timing information from the plurality of timing information inputs to the reference selection unit(408). A multiplexor multiplexes the timing information with the processed data across a link (410).