| 摘要 |
The present invention relates to a method and a device for optimising the transmission safety and the defect tolerance in high-bit-rate data networks using a signal-line redundancy between the nodes of the network. According t o this invention, parallel signal lines can be used or switched either as a working line or as a protection line, while a plurality of selectors, bridge circuits and interface modules are provided on the node side of the network. An interface module is provided at the end of each of the parallel signal lines, and all interface modules are fundamentally in the active state. In case one interface module fails, line defects can be immediately avoided due to the switching of the signalling line and to the redundancy of the interfa ce modules. Error messages can be transmitted between the interface modules of the in-coming and out-going parallel signal lines through an appropriate connection.
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