爱立信6601设备2A:41是什么故障

SO CF I2A:41 - Lost Communication to TRU
Related RUs SO CF RU:3 - Y Link Page 41
SO CF RU:0 - DXU, DUG 10, DUG 20, MU or IXU
Page 41
Description The DUG has no contact with one or more TRXs
marked as expected in the IDB.
Action Follow the instructions below until the fault is resolved.
For RUS/RRUS-based configurations:
• Reset the DUG.
• Replace the DUG.
For RUG-based configurations:
• Check that the defined RUG in the IDB corresponds
to the RUG in the RBS. Otherwise modify the IDB.
• Check that the Y link cable between the DUG
and the RUGs is correctly connected and in good
condition.
• Reset the RUG not communicating correctly with
the DUG.
• Reset the DUG.
• Replace the RUG not communicating correctly
with the DUG.
• Replace the DUG.

DUG没有检测出RRU单元上的TRX，可能原因是IDB关于TRX数据做错了，又或者是DUG模块坏了导致。解决方法：1.检查DUG的IDB数据中，TRX的定义，定义的位置、类型等；
2.DUG与RRU单元之间的联线，如检查Y-LINK。
3.重LOGD一下DUG，必要时更换新DUG（这个可以通过对调良好小区的DUG来判断）；
就是这些方法了