Data transmit through GPRS (General Packet Radio Service) network between concentrator and control centre.

集中器到控制中心之间采用GPRS网络进行数据传输。

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It concludes several parts as follows: a local metering communication network made up of data sampler and concentrator, data remote communication and computer metering management software.

系统主要包括以下几个部分：数据采集器和数据集中器构成的本地抄表通讯网络，数据远程通讯和计算机抄表管理软件。

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There, a piece of hardware called the concentrator unit plucks the data off a fiber-optic network, reformulates it into a signal at 2 to 30 megahertz and injects that signal onto the power line.

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