同步數(shù)字系統(tǒng):synchronous digital hierarchy
國際標(biāo)準(zhǔn):international standard
信號格式:signal format
網(wǎng)絡(luò)節(jié)點接口:network node interface
支路信號:tributary signals
數(shù)字交叉連接:digital cross-connection
網(wǎng)絡(luò)管理:network management
網(wǎng)絡(luò)維護:network maintenance
網(wǎng)絡(luò)運營者:network operators
傳輸速率:transmission rate
支路映射:tributary mapping
靈活性:flexibility
用戶業(yè)務(wù):subscriber services
覆蓋層:overlay levels
制造商:manufacturer
同步傳輸幀:synchronous transmission frame
線路終端復(fù)用器:line terminal multiplexer
分插復(fù)用器:add-drop multiplexer
再生中繼器:regenerator
靈敏度:sensitivity
虛容器:virtual container
成幀字節(jié):framing bytes
段開銷:section overhead
端到端傳輸:end-to-end transmission
誤碼監(jiān)視:error monitoring
信號處理節(jié)點:signal processing nodes
凈負荷:payload
指針:pointer
同步傳輸系統(tǒng):synchronous transmission system
覆蓋NNI 的標(biāo)準(zhǔn):the standard covering the NNI
國際標(biāo)準(zhǔn)接口:the international standard interface
直接同步復(fù)用:direct synchronous multiplexing
靈活的通信聯(lián)網(wǎng):flexible telecommunication networking
點對點的傳輸技術(shù):point-to-point transmission technology
先進的網(wǎng)絡(luò)管理:advanced network management
不同廠家提供的設(shè)備:the equipment supplied by different manufacturers
提供的靈活性:the flexibility provided by SDH
同步復(fù)用設(shè)備的運營者:operator of synchronous multiplexers
電信聯(lián)網(wǎng):telecommunication networking
支路信號:tributary signals
維護能力:maintenance capabilities
統(tǒng)一的電信網(wǎng)絡(luò)基礎(chǔ)結(jié)構(gòu):unified telecommunication network infrastructure
組件:building blocks
終端復(fù)用器:terminal multiplexer
貫通方式:through-mode fashion
同步數(shù)字交叉鏈接:synchronous DXC
可變帶寬:varying bandwidth
各個支路信號:individual tributary signals
傳輸系統(tǒng):transport system
光載體:optical carrier
二維圖形:2-dimensional map
傳輸次序:the order of transmission
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