按照模块化设计思路，将通信器的硬件电路分为电力线通信模块、微处理器控制模块和电源耦合模块，集中器比通信器多一个RS-232C接口模块。
Depending on the idea of modular design, the communicator is decomposed to PLC module, MCU module, power and coupling module, while the collector has one more module: RS-232C interface module.
按照模块化设计思路，将通信器的硬件电路分为电力线通信模块、微处理器控制模块和电源耦合模块，集中器比通信器多一个RS-232C接口模块。
Depending on the idea of modular design, the communicator is decomposed to PLC module, MCU module, power and coupling module, while the collector has one more module: RS-232C interface module.
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