Optical Fiber Automatic Switching Protection System For The Trunk

Automatic switching optical fiber protection system is a set of monitoring, protection and management of a body, independent of the transmission system. Long-distance optical fiber communication trunk line to achieve a non-blocking communication, in addition to transmission equipment, operators must first consider how to realize fiber optic operations, performance, real-time, online, remote, automated monitoring and with the standby switch cable protection, to ensure safe and reliable operation of cable networks.The importance of the protection of optical switching equipment is the event of a failure of maintenance personnel to quickly determine the nature of fault, the location for timely repair. In the process of troubleshooting first and most important step is to accurately locate the fault point, and only then take the appropriate measures. If it is equipment failure to determine point of failure in which station is the optical transmission equipment, or equipment failures and other protection for timely repair, the loss of time to avoid failure. Optical switching can be achieved to protect a number of paragraphs paragraph or line of protection, greatly enhanced network survivability. Specific work of this topic are as follows:Communications network combined with a variety of protection, indicating the ring protection, self-healing ring is at the operational level of protection can not be blocked in the fiber optic cable when carrying it into the business in the optical level are effectively protected, and in-depth study of the theory of optical switching technology, applications.Combined with the technical requirements for long-distance network technology for critical components of the analysis, especially complicated by the election and the election of the Choice income received than on the analysis conducted, and the protection line for different distances of the different, create a different model.Use of Changping-Yanqing do technology test situation analysis, monitoring to verify through non-code switching speed, real-time monitoring and surveillance capabilities. In the trunk, Huawei, ZTE, Siemens and other manufacturers on the application of different optical switching technology. Different for different devices to establish an alternate light path, according to the length of spare optical power is calculated on the dispersion and selection.To make all long-distance trunk WDM equipment protection programs, have not yet opened the protection of optical switching devices, depending on the implementation of alternate light path can choose the period of protection and digital relay protection section, and the initial establishment of the protection model and cost estimates.As the optical system automatically switches to protect against the transmission network needs anti-block design, completely independent of SDH and DWDM network elements in the system, in combination with alternate fiber routing or idle wavelength channel case, you can form a switch to protect the network. Proved fast and reliable optical switch automatically to protect, secure and flexible, business recovery capability, switching and SDH equipment to protect network management network management by combining non-blocking communication lines to provide a practical, economical solutions.