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试写出下列英文缩写的全文,并做简单的解释。(1)SONET(2)STM-1 (3)OC-48.(4)SDH
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更多 “问答题试写出下列英文缩写的全文,并做简单的解释。(1)SONET(2)STM-1 (3)OC-48.(4)SDH” 相关考题
考题
On an ONS 15454 node you can tunnel a(n) ().A、 SDH circuit over a SONET network delivering it as an SDH signalB、 SDH circuit over a SONET network delivering it as a SONET signalC、 SONET circuit over an SDH network delivering it as an SDH signalD、 SONET circuit over an SDH network delivering it as a SONET signal
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ZXMP M800可接入如下业务:()A、SDH业务,包括STM-1/4/16/64B、SONET业务,包括OC-3/12/48/192C、ATM业务或POS业务,包括VC4、VC4-4c、VC4-16cD、以太网业务,包括100Mbit/s、GbE
考题
sdh帧结构便于实现_________。sdh帧结构以l25μs为帧同步周期,并采用了_________等关键技术。sdh系统中的基本传输速率是stm-1,其他高阶信号速率均由stm-1的整数倍构造而成。
考题
On an ONS 15454 node you can tunnel an ().A、SDH circuit over a SONET network delivering it as an SDH signalB、SDH circuit over a SONET network delivering it as a SONET signalC、SONET circuit over an SDH network delivering it as an SDH signalD、SONET circuit over an SDH network delivering it as a SONET signal
考题
单选题On an ONS 15454 node you can tunnel a(n) ().A
SDH circuit over a SONET network delivering it as an SDH signalB
SDH circuit over a SONET network delivering it as a SONET signalC
SONET circuit over an SDH network delivering it as an SDH signalD
SONET circuit over an SDH network delivering it as a SONET signal
考题
填空题sdh帧结构便于实现_________。sdh帧结构以l25μs为帧同步周期,并采用了_________等关键技术。sdh系统中的基本传输速率是stm-1,其他高阶信号速率均由stm-1的整数倍构造而成。
考题
单选题On an ONS 15454 node you can tunnel an ().A
SDH circuit over a SONET network delivering it as an SDH signalB
SDH circuit over a SONET network delivering it as a SONET signalC
SONET circuit over an SDH network delivering it as an SDH signalD
SONET circuit over an SDH network delivering it as a SONET signal
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