含光放站的光線路保護系統(tǒng)失效問題與改進研究

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摘要:文章針對中途含有OLA(光線路放大器)站點、采用雙徑路OLP(光線路保護)組網(wǎng)的干線密集波分復用傳輸系統(tǒng)存在的保護倒換失效問題進行了原因分析,認為上游OLA站監(jiān)控信道光的干擾是主因,并通過實施OLP板后移、增加光放大板冗余的優(yōu)化改進方案,提高系統(tǒng)可靠性。
關鍵詞:密集波分復用;光線路放大器;光線路保護
doi:10.3969/J.ISSN.1672-7274.2024.01.009
中圖分類號:TN 929.1 文獻標志碼:A 文章編碼:1672-7274(2024)01-00-04
Research on Failure and Improvement of Optical Line Protection System with Optical Line Amplifier Station
XU Jie
(China Mobile Tietong Co., Ltd. Guangdong Branch, Guangzhou 510080, China)
Abstract: This paper analyzes the problem of protection switching failure in the trunk DWDM transmission system with dual path OLP (Optical Line Protection) network and OLA (Optical Line Amplifier) stations in the middle. It is believed that the interference of the optical supervisory channel light at the upstream OLA station is the main cause. By implementing an optimization and improvement plan of moving the OLP board backward and increasing the redundancy of the optical amplifier board, the system reliability is improved.
Key words: DWDM; optical line amplifier; optical line protection
1 研究背景
為提高光纖傳輸網(wǎng)的安全性,通常在兩個終端復用站點之間,安排兩條不同徑路的連接光纜,并設置自動倒換機制,形成光線路保護系統(tǒng)。(剩余3592字)