Tesla Asset Controller (TACO) Low Voltage and Communication Wiring

Communication Wiring to Gateway 3

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Note
Refer to local codes and standards for correct wiring practices and wire colors.
Terminal Name Recommended Wire Color Wire Gauge
1 CN- (CAN LO) Orange 24 - 16 AWG (0.2 - 1.5 mm2)
2 CN+ (CAN HI) Blue 24 - 16 AWG (0.2 - 1.5 mm2)
3 GND (Earth) Black 24 - 16 AWG (0.2 - 1.5 mm2)*
4 12V+ (Logic+) Red 24 - 16 AWG (0.2 - 1.5 mm2)*

* The recommended minimum wire gauge is 18 AWG (0.8 mm2) due to potential voltage drop on long wire runs with smaller conductors.

Remote Energy Meter Wiring

Terminal Name Recommended Wire Color Wire Gauge
5 RS-485 + Red 24 - 16 AWG (0.2 - 1.5 mm2)
6 RS-485 - Black 24 - 16 AWG (0.2 - 1.5 mm2)

Ethernet Jacks

Terminal Name Recommended Wire Color Wire Requirements
7 RJ45 Ethernet jacks - CAT5 or CAT6 Ethernet wiring (see Prepare Ethernet Wiring with RJ45 Connectors)

Rapid Shutdown (RSD) Wiring

Terminal Name Recommended Wire Color Wire Gauge
8 Rapid Shutdown + Red 24 - 16 AWG (0.2 - 1.5 mm2)
9 Rapid Shutdown - Black 24 - 16 AWG (0.2 - 1.5 mm2)
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Note
The terminal between the two RSD terminals is not used.

Aux Wiring

Terminal Name Recommended Wire Color Wire Gauge
10 Load Control + - 24 - 16 AWG (0.2 - 1.5 mm2)
11 Load Control - - 24 - 16 AWG (0.2 - 1.5 mm2)

TACO Factory-Installed Harness

Terminal Name Recommended Wire Color Wire Gauge
12 TACO factory-installed harness (provides 12V power to TACO) - -