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USB to 4-Port RS232 Optical Isolated Converter
USB to 4-Port RS232/422/485 Converter
16-channel isolated digital output (Open Collector) RS485 module.
16-channel digital input isolated RS485 module.
4-channel isolated digital input and 4-channel power relay output RS485 module.¡@
8-channel isolated digital input and 8-channel isolated digital output (Open Collector) RS485 module.
8-channel Analog input Isolated RS485 module.