I've read the document, according to me it is not possible. I have a potential client that thinks it is possible.
I've referred him to 1.2 of this document:
Then with a GX device:
As long as you are using the appropriate model for the nominal battery voltage, all VE.Bus inverters and inverter/chargers are compatible.
a phoenix 500/48 does not have a VE.Bus port, like the 1200 model.
Just want to confirm this?