我段管内平面调车系统用的MaxonSP－2850型便携台，因其电池接点是半球形且无正负极性标记，在检修、测试时，电源连线容易滑落，同时易将正负极性接反，造成对设备的损坏。为解决这一问题，我们进行了如下改进。将电台内C171，C168处开路，R157处短路，在稳压电源至电台连线中 MaxonSP-2850 portable platform used in the plane shunting system in the pipe segment has a semispherical battery contact and no positive and negative polarity markings. During maintenance and test, the power connection is easy to fall off and the polarity of the positive and negative electrodes Reversed, resulting in damage to the equipment. To solve this problem, we made the following improvements. The radio C171, C168 Department open, short circuit at R157, the power supply to the radio connection