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SDH光通信中保护方式1+1和1+0的区别，复用段1+1保护，一般是用在链状系统，两块群路板走不通的光缆路由，发端双发，收端选收。属热备份，不用执行倒换协议，倒换速度非常快，只有几个毫秒。1+0就是木有保护，只有一块工作板，工作板或线路断掉了，业务也就断掉了。简单来…

2024-5-1 21:11:18[未知IP0801]网友

欧洲杯红烧凤爪视频大全//www.sztspi.com/user/816310 //www.sztspi.com/user/166817 //www.sztspi.com/user/67809 //www.sztspi.com/user/194116 //www.sztspi.com/user/57588

2024-5-1 21:01:26[未知IP0801]网友

欧洲杯开幕式表演嘉宾//www.sztspi.com/user/80448 //www.sztspi.com/user/63756 //www.sztspi.com/user/72776 //www.sztspi.com/user/165710 //www.sztspi.com/user/40036

2024-5-1 20:51:12[未知IP0801]网友

1960欧洲杯在哪举行//www.sztspi.com/user/467411 //www.sztspi.com/user/45908 //www.sztspi.com/user/47918 //www.sztspi.com/user/10254 //www.sztspi.com/user/24168

2024-5-1 12:15:34[未知IP0801]网友

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