【多选题】
CRH2型动车组车辆信息控制系统的传输线分为（ ）。 ___
A. 光纤传输线
B. 自我诊断传输线
C. 同轴电缆传输线
D. USB传输线
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CRH380A统型动车组二级修，今创侧门开门时间测试时，投入主控，打开中央控制装置，按【检修】开关，进入检修模式；将司机室左侧配电盘车上试验、【空档】开关右旋至闭合位，单控门置于集控位
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CRH380A统型动车组二级修，今创侧门开门时间测试时，触摸监控显示器(MON)进入【车上检查实行】界面，再触摸车门开关试验选项，触摸【确认】
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CRH380A统型动车组二级修，今创侧门开门时间测试时，触摸监控显示器【下一页面】键后、触摸【确认】键,显示侧拉门关门时间为5～7.5s；窄幅侧拉门开门时间为2～3.5s，宽幅侧拉门开门时间为3～4.5s
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CRH380A统型动车组二级修，侧门开关测试时，须确认01、06、00车配电盘上【门手控集控开关】处于集控位
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CRH380A统型动车组二级修，前窗玻璃加热温度控制器的温度控制点为：25℃和40℃。低于25℃开始加热，升高至40℃，停止加热，如此循环
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CRH380A统型动车组二级修，YH400电连接器检查作业人员对车端连接处的电缆和电连接器电缆夹进行检查，要求电缆与电连接器电缆夹之间无位移
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CRH380A统型动车组二级修，自动车钩缓冲装置检查及润滑作业时，注意首先将头罩开闭机构供风管路截断塞门关闭，防止挤伤
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CRH380A统型动车组二级修检查清洁电钩时须锁定防尘盖，防止电钩防尘盖打下，造成人身伤害
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