Tesla Asset Controller (TACO) Low Voltage and Communication Wiring

Communication Wiring to Backup Switch

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	18 - 16 AWG (0.2 - 1.5 mm²)*
4	12V+ (Logic+)	Red	18 - 16 AWG (0.2 - 1.5 mm²)*

The connector can accept wire gauges as small as 24 AWG, but the recommended minimum wire gauge for GND and 12V+ is 18 AWG (0.8 mm²) due to potential voltage drop on long wire runs with smaller conductors.

Tesla Remote Meter RS-485 (RS485) 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)

(Optional) System Shutdown Switch Wiring Rapid Shutdown (RSD) Wiring


	Terminal Name	Recommended Wire Color	Wire Gauge
8	RSD +	Red	24 - 16 AWG (0.2 - 1.5 mm²)
9	RSD -	Black	24 - 16 AWG (0.2 - 1.5 mm²)

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)

Note

See Load Shedding Feature for more information, including wiring instructions.

TACO Low Voltage Harness


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