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Old December 2nd, 2019, 01:33 PM   #10
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Join Date: Feb 2014
Location: West Michigan
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As for Ethernet (Copper and Fiber), RS-485 etc. not an option. This system was spec'ed out long ago to use 4-20mA back to the main box the only question was how to do the wiring.

So I guess I can change it so that the Main Box supplies power to the 4-20 drivers, the other stuff in the Remote Box still needs the local power supply though. (I didn't mention them because they were not relevant to the original question.
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