Operate telegraph in W/H and ECR respectively, observe telegraph indication and alarm of each location. Check wrong way alarm. Check telegraph printer in W/H.

• 分别在驾驶室和集控室操纵车钟，观察各控制位置车钟指示和报警情况。检查车钟错向报警功能。检查驾驶室车钟打印机工作情况。