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How to connect +5V external power supply to USB 6210 to increase current on digital out pins

I would definetly go with an SSR as I get a little nervous wiring an external supply into something that already has a supply. I believe most SSRs to be optical devices where a standard relay you energize a coil which has to make a mechanical movement which requires considerably more power to make that action where as a SSR the power required is the power to operate an LED. Good Luck

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