总线型拓扑结构是指采用单根传输线作为总线，所有工作站都共用一条总线。 总线型拓扑结构的优点是电缆长度短，布线、维护容易，便于扩充，总线中任一节点发生故障都不会造成整个网络的瘫痪，可靠性高；缺点是故障诊断、隔离困难，实时性不强。
总线转换器的通信网络接口为多种异型总线之间的互联和构建比较复杂的总线型网络提供了一种解决方案。
A method of the connection in different buses and construction bus network is provided by the network interface in the adapter.
通信网络可以按照其物理排列或拓扑结构来分类。有三种常见的拓扑结构：星型、总线型和环型。
Communication networks can be classified in terms of their physical arrangement or topologies. Three common topologies are the star, bus, and ring.
系统采用半双工式RS - 485总线型通信网络和累加和校验通信算法进行数据传输。
System adopts RS-485 bus communication network which way of communication is half duplexing and accumulate and check-up communication algorithm, which are carried on data transmission.
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