External USB Communications

External USB Communications

One, Two & Four Port Serial RS-232/422/485 Interfaces from USB
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Value One Port RS-422 or RS-485 with DB9 from USB
The USB-RS422/485 is our economical solution for those with portables or laptops with available USB port but no slots to add a RS-422/485 serial communication board. It is also excellent for service situations ...
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