Importance

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Abstract

In a packet concentrating arrangement which comprises a space switch (33) having N input terminals and N output terminals, an input device (34) for supplying the input terminals with up to N simultaneous packets in each of successive time periods, N buffers (31) connected to the respective output terminals to buffer, as buffered packets, the simultaneous packets delivered to the output terminals in the successive time periods, and a selector (32) for reading the buffered packets one at a time cyclically from the buffers, a controller (35) is connected to the input device to assign priorities to the input terminals supplied with the up to N simultaneous packets and to cyclically select the output terminals which should be connected to the input terminals assigned with the priorities. The packet concentrating arrangement may comprise first through M-th space switches controlled in this manner and a single space switch which has M input terminals connected to first through M-th selectors associated with the buffers used in connection with the first through the M-th space switches and M output terminals and is similarly controlled. Between incoming and outgoing terminals, a packet switching arrangement may comprise such a packet concentrating arrangement for supplying the buffered jackets one at a time to each outgoing terminal.

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First Claim