The I/O Expander module for the ION 8600 is compatible with the ION 8300, 8400, and 8500 series power meters as long as the meter's firmware is at an appropriate version.

The required firmware versions are listed in the table below.

I/O Ports	ION 8300, ION 8400, ION 8500 Firmware Version	ION 8600 Firmware Version
Digital Inputs	v203 and higher	v310 and higher
Digital Outputs	v203 and higher	v310 and higher
Analog Outputs	v205 and higher	v310 and higher

The part numbers for the IO Expander module options are listed below.



The I/O Expander module connects to the meter utilizing the 24-pin Molex connector, and break out both the I/O options and the serial communication options (COM1 and COM2/COM4 depending on meter).

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Legacy KB System (APS) Data: RESL212830 V1.0, Originally authored by LaLo on 10/22/2013, Last Edited by LaLo on 10/22/2013
Related ranges: ION8500, ION8600