デジタル交差接続

Japanese Patent JP4159359

B2

A digital cross-connect (DXC) 10 comprises: a plurality of ports (30-100) for receiving/outputting signals and switching means (20) for selectively cross-connecting signals applied to one port to one or more other ports. The tswitching means (20) comprises a single switching matrix which is arranged to be capable of switching switching optical signals of at least one pre-determined type, such as Optical Data Units (ODU). Alternatively or in addition the switching matrix is arranged to be capable of transparently switching complete Synchronous Digital Hierarchy (SDH) synchronous transport modules STM-N and/or complete SONET synchronous transport signal STS-N derived from optical carriers OC-N and/or SDH virtual containers VC-3, VC-4, and/or concatenated virtual containers VC-4-nc where n=4, 16, 64 or 256 as defined in ITU-T Recommendation G.707 and/or SONET synchronous transport system STS-1s, STS-nc where n= 3, 12, 48, 192 or 768 as defined in Telcordia GR253.

JPH01240041	OPTICAL COMMUNICATION SYSTEM
JP2009055307	SYNCHRONIZATION CONTROL SYSTEM, METHOD, AND PROGRAM
JPH05292110	SECTION TRACE METHOD IN WAVELENGTH MULTIPLEXING NETWORK

Lanzone Sergio
Damele Agostino
Abas garni

JP2002555578A

October 01, 2008

December 21, 2001

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Ericsson AB

H04B10/27; H04J3/00; H04B10/075; H04B10/275; H04B10/291; H04J3/16; H04Q3/52; H04Q11/00

JP9512404A
JP6315177A
JP10505974A
JP2000341233A
JP2002503056A
JP2001186188A
JP4222133A
JP352428A
JP11266220A
JP9507353A

Y. Rokugo et al.,‘An Asynchronous DS3 Cross-Connect System with Add/Drop Capability’,Global Telecommunications Conference, 1988, and Exhibition. 'Communications for the Information Age.' Conference Record, GLOBECOM '88., IEEE,1998年11月28日,pp. 1555-1559

Minoru Nakamura
Fumiaki Otsuka
Sadao Kumakura
Nobuo Ogawa
Takaki Nishijima
Atsushi Hakoda

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