Apparatus for switching and transferring SONET/SDH, PDH, Ethernet signals and method thereof

Integrated switching / transmission device and method of the SONET / SDH, PDH, and Ethernet signal according to the present invention comprises a synchronous digital (SONET / SDH) signal, similar to synchronous digital (PDH) signal, and the connection of the Ethernet signal, a synchronous digital (SONET / SDH) signal, similar to synchronous digital (PDH) signal and the Ethernet signal mutual conversion, packet switching, a synchronous time slot switching, and provides to integrate the channel configuration management and control functions in one system, a packet switching according to the application capacity, time slot switching capacity, packet / time-slot Brit can be expanded and configure gong capacity, packet / time slots to be through the bridge provides the differential service and the service provided by a separate Ethernet device or a SONET / SDH network device and it can service users who provide a variety of communications services and reliability at an affordable price and investment for operators It can provide a reduction in maintenance costs and Synchronous Digital (SONET / SDH) signal, similar to synchronous digital (PDH) signals, Ethernet, packet switched, time-slot switching, integrated multi-service platform (MSPP), multi-service switch (MSS)