Telephone subscriber number allocation auxiliary instrument and control circuit thereof

The utility model discloses a telephone subscriber number allocation auxiliary instrument and a control circuit thereof. The control circuit comprises a central processing unit, a 2M parameter measurement BNC interface module, a 2M parameter measurement L9 interface module, a key input interface module, a power supply module, a liquid crystal display module and a word stock storage module, the 2M parameter measurement BNC interface module, the 2M parameter measurement L9 interface module, the key input interface module, the power supply module, the liquid crystal display module and the word stock storage module are electrically connected with the central processing unit. According to the utility model, a user number allocation line pair query function can be realized, and the operation is simple and convenient. 本实用新型公开了一种电话用户放号辅助仪及其控制电路。该控制电路包括中央处理机、2M参数测量BNC接口模块、2M参数测量L9接口模块、按键输入接口模块、电源模块、液晶显示模块和字库存储模块，所述2M参数测量BNC接口模块、所述2M参数测量L9接口模块、所述按键输入接口模块、所述电源模块、所述液晶显示模块、所述字库存储模块均与所述中央处理机电连接。本实用新型能够实现用户放号线对查询功能，并且操作简便。