Backup Gateway 2 Communication Wiring

Table 1. Powerwall Communication Wiring
Terminal Name Recommended Wire Color Wire Size
1 12V + (Logic +) Red

1.5 mm2 (max 45 m)
1.0 mm2 (max 35 m)

2 GND (Earth) Black
3 CN + (CAN HI) Blue 0.2 - 1.5 mm2
4 CN – (CAN LO) Orange

Informational PurposesAn informational icon, calling your attention
Note
4-conductor communication cable must be 300 V rated or double insulated with one twisted pair shielded copper cable.
Table 2. Aux Wiring
Terminal Name Recommended Wire Color Wire Size
1 Site Shutdown (OUT) - 0.2 - 1.5 mm2
2 Site Shutdown (IN) - 0.2 - 1.5 mm2
3 Generator / Load Control (+) Red 0.2 - 1.5 mm2
4 Generator / Load Control (-) Black 0.2 - 1.5 mm2
5 Interlock pin - 0.2 - 1.5 mm2
Table 3. External Meter Communication Wiring (Not Used with Powerwall 3)
Terminal Name Recommended Wire Color Wire Size
1 GND (Earth)/Shield - 0.2 - 1.5 mm2
2 RS485 HI #1 Red 0.2 - 1.5 mm2
3 RS485 LO #1 Black 0.2 - 1.5 mm2
4 GND (Earth)/Shield - 0.2 - 1.5 mm2
5 RS485 HI #2 Red 0.2 - 1.5 mm2
6 RS485 LO #2 Black 0.2 - 1.5 mm2
Table 4. Jump Start (Not Used with Powerwall 3)
Terminal Name Recommended Wire Color Wire Size
1 12V Red 0.2 - 1.5 mm2
2 GND Black 0.2 - 1.5 mm2