ATM switch and ATM multiplexer.

摘要

An ATM switch has a plurality of concentration space-division switches (9-16) each constituted with an S-stage connection of switch modules (84). Each of the switch modules includes M buffers (87-1 to 87-M) and a selector (89) for selecting an arbitrary one of outputs from the M buffers. Each stage includes switch modules of which the number is obtained by multiplying by at most M a number of switch modules disposed in a stage succeeding thereto. The S stages include a final stage constituted with a switch module.