Which timing mode is appropriate for an SDH NE that is adjacent to an SDH NE Bits-1 timing? ()
SDH的中文翻译是:()。
In SDH, what is the name of the embedded Data Communication Channel (DCC) in bytes D1-D3?()
SDH应用的存在的问题有()。
SDH Code Violations (CVs) totals in the PM tables are actually an accumulation of the number of().
If a SONET/SDH interface transmit link fails between two JUNOS devices, which two alarms or defects would be seen on those devices?()
SDH的特点有哪些?SDH帧中AUPTR表示什么?它有何作用?
SDH设备数字配线架安装的绝缘电阻测试,测试数量要求为每架测试()回线。
光传送网维护的对象主要分为SDH传送网,WDM传输系统,各类传输设备的网管系统,光纤、光缆。
SDH的基本复用单元包括C、VC、()、TUG、AU和AUG。