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有源單串口隔離轉(zhuǎn)換器
8510(rs-422/485隔離驅(qū)動器)
8520(rs-232/422/485隔離轉(zhuǎn)換器)
8520e(rs-422/485隔離驅(qū)動器)
8521：（帶地址的rs-232/422/485隔離轉(zhuǎn)換器）
串口光端機
8541(光纖至rs-232/422/485轉(zhuǎn)換器)
8541a(光纖至rs-232/422/485轉(zhuǎn)換器)
8541b(光纖至rs-232/422/485轉(zhuǎn)換器)
8541d(光纖至rs-232/422/485轉(zhuǎn)換器)
8541c(機架式光纖至rs-232/422/485轉(zhuǎn)換器)
8541aj(機架式光纖至rs-232/422/485轉(zhuǎn)換器)
8541bj(機架式光纖至rs-232/422/485轉(zhuǎn)換器)
8541dj(機架式光纖至rs-232/422/485轉(zhuǎn)換器)
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