Abstract: The balise transmission subsystem in the on-board ATP system of CTCS3-300T train control system is especially important. In field operation, it is found that the balise transmission subsystem faults are a major problem affecting train operation quality. In order to ensure the normal operation of 300T ATP balise information transmission system and improve the efficiency of operation and maintenance, this paper analyzes the causes of typical failures and proposes treatment measures based on the principle of balise transmission system and relevant functional tests.

Key words: CTCS3-300T, balise transmission system, failure analysis

摘要： 应答器传输系统在CTCS3-300T列控车载ATP系统中尤为重要，现场运营中发现，应答器传输系统故障是影响列车运营质量的一类主要问题。为保障300T型ATP应答器传输系统的正常运行，提高运营维护效率，结合应答器传输系统原理和相关功能测试，针对典型故障类型，分析产生原因，提出处理措施。

关键词: CTCS3-300T, 应答器传输系统, 故障分析