Device for processing sonet or SDH frames having an H.100 bus

摘要

A management method for a FIFO placed between an incoming and an outgoing data flow, wherein the data flows are synchronous and have a transmission speed that varies about a nominal speed, includes the steps of initially filling the FIFO to a predetermined level; writing and reading data in the FIFO through the incoming and outgoing data flows, respectively; if the FIFO becomes empty, sending meaningless data in the outgoing flow, until the FIFO has reached again its predetermined filling level; and as soon as the FIFO becomes full, declaring the FIFO empty. <IMAGE>