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当今社会各行业对信息的依赖愈来愈大,要求通信网络能及时准确的传递信息。一旦网络出现故障(这是难免的,如光接头接触不良、光纤衰耗过大),将对整个社会造成极大的损坏。因此通信网络利用备用设备或现有设备中的冗余能力使业务自动从故障中恢复传输的能力非常重要。本文对高速公路通信系统干线传输的组网方式和业务保护进行了简要介绍。
In today’s society, the dependence of industries on the information is getting larger and larger, requiring the communication network to transmit the information timely and accurately. In the event of a network failure (which is inevitable, such as bad optical connectors, fiber attenuation is too large), will cause great damage to society as a whole. Therefore, it is very important that the communication network utilizes the redundancy capability of the backup device or the existing device to enable the service to automatically resume the transmission from the failure. This paper introduces the trunk network transmission mode and business protection of expressway communication system.