Tesla Powerwall 2 AC Installation Manual page 34

9. On the Backup Gateway side, plug the 4-pin Phoenix connector into the 4-pin socket at the
bottom left of the enclosure.
Figure 33: Backup Gateway Ground and Communication Connections
10. On the Powerwall side, plug the 4-pin Phoenix connector into the bottom 4-pin socket
(labeled "IN") in the Powerwall wiring compartment.
Figure 34: Powerwall Ground and Communication Connections
32 Powerwall Installation Manual