名词解释题SDH
名词解释题
SDH
参考解析
解析：
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相关考题：
与PDH相比较,SDH的主要特点包含:SDH有一套标准的信息等级结构、SDH的帧结构是矩形块状结构、SDH帧结构中拥有丰富的开销比特、( )。 A. SDH有矩形信息等级结构B.SDH有标准的帧结构C.SDH拥丰富的信息结构D.SDH具有统一的网络节点接口
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
下列对于SDH体制与PDH相比较的说法不正确的是（）。A、SDH体制采用同步复用和灵活的映射结构B、SDH体制更安全，系统不容易受病毒或误操作的危害C、SDH体制指针调整机理复杂D、SDH体制容易产生指针调整抖动
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
SDH微波网可以利用现有SDH光纤网络基础设施进行建设，其主要应用不包括（）。A、作为SDH光纤网络的保护B、替代SDH光纤网络的干线线路增加线路C、与SDH光纤系统串接使用D、利用SDH微波系统使光纤电信网形成闭合环路
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
单选题铁路传输设备主要包括（）等设备。ADWDM、SDH、OLT、ONU、PCMBDWDM、SDH、PDH、OLT、ONUCDWDM、SDH、MSTP、ASON、PDHDOLT、ONU、PDH、DDF、VDF
单选题On an ONS 15454 node you can tunnel an （）.ASDH circuit over a SONET network delivering it as an SDH signalBSDH circuit over a SONET network delivering it as a SONET signalCSONET circuit over an SDH network delivering it as an SDH signalDSONET circuit over an SDH network delivering it as a SONET signal
问答题简要比较SDH与基于SDH技术的MSTP。