The M-BUS, the two wire bus, is the European standard for remote instrument data readout system. It mainly used for energy consumption meters.
介绍了M - BUS二线制总线，它是一种用于远程仪表读取数据的欧洲标准，主要用于耗能测量仪表。
The present situation of the connection used in electric power communication network in Jamusi place is introduced. And the superiority of popularizing 4-wire E/M connective way is analyzed.
介绍佳木斯地区电力通信网的接口运用现状，并分析了推广4 线E／M 接口方式的优势。
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