1如何解决值班台按键自振铃问题现象:成昆线FH98数字调度系统开通中,经常出现车站值班台的模拟站间闭塞、区间按键自振铃现象,接起后又无任何反应(经查明不是板件的故障)。处理:1·先判断此自振铃是由哪2个车站的模拟站间闭塞线路所引起。自振铃发生时,断开外线,故障消失;接上? How to solve the problem of self-ringing of duty station button phenomenon Phenomenon: In the opening of FH98 digital dispatching system in Cheng Kun line, there often appear occlusion between analog stations of the station on duty station, the self-ringing phenomenon of button in the interval and no reaction after the connection Ming is not a failure of the plate). Handling: 1. Determine which self-ringing is caused by the occluded lines between analog stations at two stations. Since the ring occurred, disconnect the outside line, the fault disappears; connected?