在工业通信领域，RS485总线的稳定运行至关重要。本文聚焦其关键的电阻设计问题，以RSM485PHT为例，深入剖析偏置与终端电阻的作用及影响，同时提供实用的调整策略和应用指导。 RS485总线的偏置电阻主要是给A、B确定的逻辑状态。 RS485总线的终端电阻主要是用于 ...

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