2000机架更换TRU后，新换的TRU加电自检后立即出现OPERATION、LOCAL两灯长亮，可能的原因是（）

[填空题] RBS2202设备TRU的LOCAL OPERATION两灯都亮，表示TRU已处于（）模式

[单选题]RBS2202加电后，若TRU的FAULT红灯闪，DXU上有BSFAULT黄灯亮，这表示：（）A .TRU坏B .TRU软件丢失C .DXU坏D .DXU与TRU坏

[问答题] 简述按流程规范更换TRU的步骤？

[判断题] 对机架中的每个TRU打开OMT的分集接收监测功能，测量SSI值，即每个TRU的接收分路RXA减去RXB，如为正值，表明A路接收分路存在问题，如为负值，表明B路接收分路存在问题。A . 正确B . 错误

[单选题]2000基站加上扩展架后，DXU无法对扩展架的TRU进行RESET，下列的哪种分析是正确的。（）A . 扩展架的TRU软件版本与DXU不同B . 跨架总线或扩展架背板上开关没跳对C . IDB未重做D . 两个机架不同型号

[单选题]RBS2002机架中TRU上仅TXNOTENABLED黄灯亮显示的含义是：（）。A .TRU工作正常B .暂时无法进行发射C .TRU处于本地操作维护状态D .TRU可能已坏

[单选题]RBS2202机架中TRU上仅TXNOTENABLED黄灯亮显示的含义是：（）。A .TRU工作正常B .暂时无法进行发射C .TRU处于本地操作维护状态D .TRU可能已坏

[单选题]Which of the following statements is true regarding simple sort techniques?A．exchange sort if frequently referred to as a bubble sort.B．exchange sort is the least expensive.C．if random data are in an array that is to be sorted ,an insertion sort will

[单选题]Which of the following statements is TRUE according to the passage?A． Some companies in the United States moved to Sweden, Germany and Belgium.B． Fresh air, spacious room and being away from others attract people to move to the suburbs.C． People woul

[单选题]Which of the following statements is true according to the text?A． Doctors will be held guilty if they risk their patients'death.B． Modern medicine has assisted terminally ill patients in painless recovery.C． The Court ruled that high-dosage pain-re