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介紹基于CPCI總線的抗惡劣環(huán)境計算機系統(tǒng)中光隔離調(diào)理模塊的設計及實現(xiàn),通過對輸入模擬量進行差分接收、信號轉換、隔離放大、有源濾波,最終輸出為滿足設備需求的電壓信號。該設計在實際應用過程中得到了可靠性、穩(wěn)定性等方面的驗證。
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Introduction to RS485 RS232 , RS422 , RS423 and RS485 are serial communication methods for computers and devices. RS232 is without doubt the best known interface, because this serial interface is implemented on almost all computers available today. But some of the other interfaces are certainly interesting because they can be used in situations where RS232 is not appropriate. We will conce