该设备采用列车接近一次自动通知方式,当相对方向的列车同时或先后接近道口时,能同时或先后发出列车接近信息;不论是站内停车或通过,列车由车站向道口接近时,均发出列车接近信息;当列车在站内停车后,设备自动复原;当车站向道口方向发车(包括通过列车)出站信号机开放时,能向道口发出信息;当有关 The device uses a train approach to automatic notification, when the relative direction of the train at the same time or near the crossing, the train can simultaneously or successively issued information; whether the station stop or pass, the train approaching the crossings from the train station, are approaching the train Information; when the train stops in the station, the device automatically restored; when the station to the direction of the crossing (including through the train) outbound signal open, it can send a message to the crossing; when relevant