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Can the I/O Expander’s Digital Inputs and Outputs function if the power supply is not connected?

In the I/O expander, only the Analog Outputs are excited by the internal power supply. Digital Inputs and Outputs are externally excited and powered from the meter itself. So, Digital Inputs and Outputs will work without the power supply being energized.

Last Revised: April 9, 2008
Applies To: ION 8600, I/O Expander
Original Author: KG
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