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PCM出现问题时,将直接影响接入网系统的性能,严重情况可能会引起远端主节板、用户板故障等后果,应立即解决处理。一、PCM问题描述: PCM问题是指接入网后台出现有关PCM方面的告警; 故障告警:PCM线路故障(全断) 事件告警:PCM帧失步 PCM帧对告 PCM滑码 PCM问题的几个特点: ①一般情况下,PCM告警出现在和远端ONU对应的E1上。②告警出现几秒钟以后就能恢复,即报PCM线路正常,因此也称为PCM闪断。③PCM告警出现的情况有多种多样,大
When a problem occurs in the PCM, the performance of the access network system will be directly affected. In severe cases, the problems may occur such as the failure of the remote main board and the user board, and the solution should be immediately addressed. First, the PCM Description of the problem: PCM problem refers to the background of the access network appears on the PCM alarm; Fault alarm: PCM line fault (all off) Event alarm: PCM frame out of sync Features: ① Under normal circumstances, PCM alarm appears on the E1 corresponding to the remote ONU. ② A few seconds after the alarm can be restored, that is reported normal PCM line, it is also known as PCM flash. ③PCM alarm there are a variety of situations, large