I'm in the process of setting up a 3-phase system utilising 3 x Quattro 15kVA, Cerbo GX with touch 50 GX interface. The batteries used are 4 x BYD LVL 15.4 modules. The BMU connects to the BMS Can interface connection, using the Type A Cat5 cable, with a termination plug.
I'm at the point of setting up the ESS Assistant within VE Configure 3 where asked to specify the Battery System.
The two options as I see it are the with two-signal or "with other type BMS".
Where in Victron literature can an answer be found, as the technical data on the LVL is scant.