Isolated RS-232 to RS-422 Converter
Isolated convertes RS-232 to RS-422, Internal terminator selection.
Model: ECD422ic

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Isolated RS-422 Repeater
Isolates bothe signal and Power ends, Internal terminator selection
Model: ECD422ir

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Self-powered RS-485/422 Converter
No Power required, get power from RS-232 port, Support RS-485/422, 2-wire(half duplex) and 4-wire (Full duplex) selectable(jumper), Internal terminator(120 Ohm) selectable.
Model: ECD422nc

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Bus Powered USB to RS-422/485 Converter
No extenal power required, get power from USB port, Support USB1.1/2.0, Support RS-485/422, 2-wire(half duplex) and 4-wire(full duplex) selectable, jumper selects internal terminator(120 Ohm).
Model: ECD422USB-bp

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View User Manual (.PDF)