Variable speed digital switching system

The invention provides a suitable variable speed digital switching system to handle moving images traffic. An incoming and outgoing TDM arranged in a grid pattern The crosspoint buffer provided at each lattice point of the bus, each of said crosspoint buffer, the buffer only data of the time slot addressed to the outgoing line TDM bus that he examines the frame header of the input TDM frame on incoming line TDM bus belongs transfer the contents of the frame header to the scheduler as well as the ring, the scheduler, based on the content of the frame header, how to do scheduling whether allocated to each crosspoint buffer time slots at output TDM frame.