How to wire AC input for 2 Multiplus II 12/3000/120 units configured in split phase

[chriscatt (cattmarine)]

Shore power is 120v/30A. I have a 30a circuit breaker for the H/N. Planning to to use a junction box after the circuit breaker with 10ga wires to each unit AC input. Is this the correct way to do the AC input for both units? Once configured in Split phase how does it work for power assist, charging and pass through? I am aware that the L2 out on both units will not work when configured in split phase. I have read through the manual but I don’t see any descriptions on how to wire 2 units for the input. I’m still waiting to hear back from the supplier that I purchased it from, but they haven’t been very helpful with a more complicated set-up.