Synchronous transport module

Details Synchronous transport module Synchronous transport module

2006-08-29

2006-08-29

Kizou, Hassan (Department: 2616)

Multiplex communications

Fault recovery

Bypass an inoperative channel

C370S392000, C370S469000, C370S475000

Reexamination Certificate

active

07099272

ABSTRACT:
A synchronous transmission module is disclosed, including a UTOPIA interface chip for transmitting UTOPIA level-2 data. A pair of STM interface chips receive UTOPIA level-1 data. A UTOPIA memory converts UTOPIA level-2 data into UTOPIA level-1 data and transfers the UTOPIA level-1 data to one of the pair of STM interface chips, according to a transmission address. A UTOPIA interface control part converts the transmission address, depending on states of the STM interface chips. Therefore, variable duplexing of the plurality of STM interface chips in a board is made possible.

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