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        SDH光通信中保護方式1+1和1+0的區別,復用段1+1保護,一般是用在鏈狀系統,兩塊群路板走不通的光纜路由,發端雙發,收端選收。屬熱備份,不用執行倒換協議,倒換速度非???,只有幾個毫秒。1+0就是木有保護,只有一塊工作板,工作板或線路斷掉了,業務也就斷掉了。簡單來…
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