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
Public
All content © 1992-2008 Schneider Electric