介绍了数据总线用射频三同轴电缆及连接器的应用情况，并对电缆和连接器的结构及屏蔽性能进行了分析。
The applications of rf triaxial cables and connectors in data bus are introduced. The structure and shielding performance of the cables and connectors are analyzed.
PROFIBUS现场总线网络层采用屏蔽双绞线连接。
The shield twisted-pair was used to link with PROFIBUS field bus network layer.
硬件方面我们采用成熟可靠的RS422总线技术，选用高可靠性的通信芯片，以及给通信线路加上屏蔽层等措施来提高可靠性。
We can improve the reliability by adopting fledged RS422 Bus technology, selecting highly reliable IC, and shielding the communication channel.
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