三线RS-232隔离保护器，是一款袖珍型RS-232串口隔离器，体积小巧，安装方便，在设备多次插拔情况下能够有效防止感应电压损坏设备的RS-232接口。
MODEL232I采用特有串口取电技术，从RS-232接口的TXD、RTS和DTR信号获取电源，即使在只有TXD信号供电时亦能正常工作，功耗极低，达到“无源”工作效果。该产品具有业界领先的隔技术，单纯隔离设备可以提供AC2500V隔离能力，而不影响设备的正常使用
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