Digital data packet switching module for allocating empty packets to a crosspoint switch

摘要

The invention relates to a switching module comprising input buses (1-1, ..., 1-n) and at least one output bus (2-j), in which each input bus, for data packet transmission, is connected to the output bus by means of a crosspoint switch (4-ij). Each crosspoint switch (4-ij) has a unique address and a request output for sending out a request signal.;The switching module further includes allocation means (3-j) which place empty packets having the unique address of a crosspoint switch (4-ij) onto the output bus (2-j). The allocation means (3-j) comprise recording means for receiving the request signals and include a FIFO for storing representations of the unique crosspoint switch addresses that are derived from the request signals. The allocation means (3-j) further include a packet generator for deriving addresses from the representations from the queue store and allocating these addresses to the empty packets.