爱立信设备故障处理（Ericsson device fault handling）.doc

爱立信设备故障处理（Ericsson device fault handling） Mobile communications Ericsson RBS2206 base station - troubleshooting experience Ericsson base station equipment operation more intelligent, mainly for monitoring and management of CF MO on the other, under normal circumstances, the system will automatically for faulty equipment shutdown and make fault code FAULT CODE. When dealing with the wireless equipment failure of the RBS2000 base station, we can check the fault code to determine the fault. If the red light (FAULT) of the device is observed, the corresponding hardware can be removed in most cases. But in some special circumstances, not immediately judged by the above methods, such as periodic reduction of DXU, the whole area of the fault block. Use the practical features of the OMT software to help solve the problem. Example 1: kongjianya township station, third residential expansion frame expansion, fault reset once every half hour, arriving when initially suspected DXU performance problems, but after replacing DXU or a small reduction condition, the fault has not ruled out. After examination by OMT DXU LOG file, CF LOCAL BUS has found the fault records of FAULT in the area of reduction of the time, because LOCAL BUS FAULT is DXU on the bus receives too much error. So check the new frame of the internal bus, found 2202 new frame DXU backplane installed on the termination of the head loose, estimated termination head is in disassembly in the process of transporting loose, the correct connection of bus termination head after troubleshooting. Example 2: Xinglongshan base station second district also had periodic fault reset, reset once every half hour area, station using OMT to check the LOG file for the TF display, fault out of sync, after observation in the room about half an hour and a small reduction. Room temperature at 19 degrees, a GREE 5 air-conditioning outlet on the 2 cell rack cooling, because the smaller the room space, small space has been installed in the h