WinAdmin worked up to version 2.22, then they developed emanager.

An ACTU2A processor will have either 2.XX up to version 3.10. I think version 1.X was on the older ACTU1A processors.

An ACTU3A processor started with version 4.00 up to the latest version 5.20.

Emanager is backwards compatable with older versions (although I have had some issues with real old 1.0X versions), so if you have emanager version 5, you would be ok in most cases. You could have issues if the processor level is higher then the emanager version.