DLT645-2007多功能电能表通信规约: 本标准规定了多功能电能表与手持单元（HHU）或其它数据终端设备之间的物理连接、通信链路及就用技术规范。 本标准适用于本地系统中多功能电能表与手持单元（HHU）或其他数据终端设备进行点对点的或一主多从的数据交换方式。其它具有通信功能的电能表，如单相电能表、多费率电能表，可参照选用。-Multi-function watt-hour meter communication protocol

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