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SDH光通信中保護方式1+1和1+0的區別

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，倒換速度非常快，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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