Old Multiplus 12/1600 with VE.BUS Smart Dongle

DIY
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1

Hello,

I have an old Multiplus 12/1600 with firmware version 1806133.VFF written on the chip (cf. picture attached), and I would like to connect a VE.Bus Smart Dongle to it.

20250616_182119
20250616_1821191920×1440 349 KB

When I plug the RJ45 cable on the dongle, the Multiplus stop working. I guess I’ll need to update the firmware, but I’m not sure if I need to buy the MK3 or MK2 Usb interface.
Could you confirm it is possible, and if so with which interface ?

Thanks,
Mat