| Telecom operators have worked out stringent availability indicators for their own transmission networks to provide a reliable and uninterrupted service for its customers in the market place with increasingly fierce competition. How to improve the transmission network's viability and restore capability is important indicator of availability.Optical fiber line auto switch protection system is a simple, economic, practical means of protection. It is an automatic monitoring protection system, based completely on optical cable routes and independent of transmission system. It can achieve optical cable lines'synchronous switching protection and restore communications quickly, thereby greatly enhance the availability of optical cable.This article introduces the principle of optical fiber line auto switch protection system and several system protection programs, and makes specific technical requirements in accordance with the transmission systems from different manufacturers in existing network. It gives specific application programs according to practical condition of network, and verifies the protection system through tests. |
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