发明名称 |
DIGITAL CROSS CONNECT AND ADD/DROP MULTIPLEXING DEVICE FOR SDH OR SONET SIGNALS |
摘要 |
In a communication network for transferring signals, e.g. according to the SONET or SDH standards, interconnecting node devices are provided consisting of parallel processing modules (9-T, 9-R). A plurality of processing modules with first and second interfaces rearrange/insert/extract tributary signals and configurable multiplexing/demultiplexing means enable each processing module to access any portion of an arbitrarily preselected tributary signal. In a SONET/SDH system, signals between SONET/SDH frames are rearranged on incoming (20) and outgoing (26) main lines = Digital Cross-Connect, or tributary signals are transferred between frames and local lines (16-i-T, 16-i-R) = Add/Drop Function. The invention provides configurable multiplexing/demultiplexing means (22-i, 24-i, 28-i, 30-i) which allow the processing modules to have access to any tributary signals in said frames, thus enabling digital cross-connect and add/drop operations without completely demultiplexing or disassembling frames. In a preferred embodiment, the configurable multiplexing/demultiplexing means includes a pipeline arrangement (22-i, 24-i) connected to all processing modules (9-T, 9-R).
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申请公布号 |
WO9826531(A1) |
申请公布日期 |
1998.06.18 |
申请号 |
WO1996IB01418 |
申请日期 |
1996.12.11 |
申请人 |
INTERNATIONAL BUSINESS MACHINES CORPORATION;HERKERSDORF, ANDREAS;LEMPPENAU, WOLFRAM;VAN AS, HARMEN, R. |
发明人 |
HERKERSDORF, ANDREAS;LEMPPENAU, WOLFRAM;VAN AS, HARMEN, R. |
分类号 |
G11B20/10;G11B20/12;G11B20/14;G11B27/10;G11B27/30;G11B27/32;H04J3/00;H04J3/06;H04J3/08;H04Q11/04;(IPC1-7):H04J3/06 |
主分类号 |
G11B20/10 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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