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FBs-CM22 2個RS232(Port3+Port4)之擴充通訊模組
FBs-CM55 2個RS485(Port3+Port4)之擴充通訊模組
FBs-CM25 1個RS232(Port3)+1個RS485(Port4)之擴充通訊模組
FBs-CM25E 1個RS232(Port3)+1個RS485(Port4)+乙太(Ethernet)網(wǎng)絡界面擴充通訊模組
FBs-CM55E 1個RS485(Port3)+1個RS485(Port4)+乙太(Ethernet)網(wǎng)絡界面擴充通訊模組
FBs-CM25C 光隔離之泛用RS232←→RS485轉(zhuǎn)換器(Converter)
FBs-CM5R 光隔離之泛用RS485中繼器(Repeater)
FBs-CM5H 光隔離之泛用4個RS485集線器(HUB)
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