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NI ISC-1782 Lighting Control - Analog 0-10v output reading 0.3-11.8V

Any ideas why the "0-10v" lighting controller output on my 1782 smart camera is actually outputting 0.3-11.8v? Also, on the oscilloscope there's nearly 500mv of ripple! I am getting these readings with only the camera power supply and ethernet connected while using the lighting tab of an acquire image step in vision builder. Additionally, the 0-255 adjustable value of "lighting intensity raw" in vision builder doesn't seem calibrated to the output. The output maxes out at 11.8v around a raw value of 180 which means 180-255 does nothing.

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