Thanks but going back to your original suggestion. Just using the Aten USB/serial adapter, do I even need an EQDIR adapter in between the mount & laptop/RPI or will it work with just the Aten USB/Serial adapter alone? My setup with the hand controller works fine with Win7/Ascom. Also don't I need to install the Aten drivers? I did notice that the yellow LED on the Aten adapter doesn't light up but it did with my Win7/Ascom setup once I installed the drivers.

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