Ward call system is a communication equipment used frequently in ward. The article introduces the principle and the circuits of a self-designed simple ward call system.
病房传呼系统是医院病房使用频率最高的通讯设备。本文就自行设计的简易病房传呼系统的原理和电路做一介绍。
Ward call system is a communication equipment used frequently in ward. The article introduces the principle and the circuits of a self-designed simple ward call system.
病房传呼系统是医院病房使用频率最高的通讯设备。本文就自行设计的简易病房传呼系统的原理和电路做一介绍。
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