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Call Nobeltec. They need to give you an activation code for RadarPC
In Response To: RS-422 to usb for $14 ()

They probably activated VNS but not with RadarPC. It's a software switch.

RS-422 is not a protocol -- it's a different electrical signal than RS-232. RS-422 uses differential signal pairs to toggle between states -- each pair of wires represents a single signal. RS-232 uses a single wire for each signal, toggling voltage with a reference to "ground" state.

I don't know how that BYTECC device can handle both, because it requires different chips and pin configurations, but I'm glad to hear you got it working.

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