Tributary unit signal cross-connection apparatus

Details Tributary unit signal cross-connection apparatus Tributary unit signal cross-connection apparatus

1996-11-27

1999-06-22

Pham, Chi H.

Multiplex communications

Pathfinding or routing

Through a circuit switch

370427, H04L 1250

Patent

active

059149523

ABSTRACT:
A cross-connection apparatus for tributary unit-12 signal included in a synchronous transfer module-N signal used as a connection signal between synchronous digital hierarchy network nodes, is provided, including, an input/output and tributary unit time switching means for receiving a signal structured in the form of a frame (HEBUS) made up with an administration unit 3 signal, identifier byte and bit interleaved parity byte, performing an administration unit 3 pointer processing, virtual container 3 path overhead processing and tributary unit-12 pointer processing in order to be connected to the switching network, and thus performing a tributary unit-12 unit switching function; and a space switching means for receiving a frame (LBUS) made up with the tributary unit-12 signal, identifier byte and bit interleaved parity byte, namely, an LBUS signal, from the input/output and tributary unit time switching means, the means performing and outputting a space switching operation with the signal.

REFERENCES:
patent: 4998242 (1991-03-01), Upp
patent: 5040170 (1991-08-01), Upp et al.
patent: 5570358 (1996-10-01), Alatalo et al.
patent: 5627826 (1997-05-01), Kameda et al.

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