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	Wire Strip Length	Maximum Cable Length
1	CN- (CAN LO)	Orange	24 - 16 AWG (0.2 - 1.5 mm²)	5/16 in (8 mm)	150 ft (45 m) for 16 AWG (1.5 mm²), 82 ft (25 m) for 18 AWG (0.8 mm²)
2	CN+ (CAN HI)	Blue	24 - 16 AWG (0.2 - 1.5 mm²)
3	GND	Black	18 - 16 AWG (0.2 - 1.5 mm²)*
4	12V	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	Wire Strip Length	Maximum Cable Length
5	RS-485 +	Red	24 - 16 AWG (0.2 - 1.5 mm²)	5/16 in (8 mm)	328 ft (100 m)
6	RS-485 -	Black	24 - 16 AWG (0.2 - 1.5 mm²)	5/16 in (8 mm)	328 ft (100 m)

Ethernet Jacks (See Ethernet Wiring)


	Terminal Name	Recommended Wire Color	Wire Requirements	Maximum Cable Length
7	RJ45 Ethernet jacks	-	CAT5 or CAT6 Ethernet wiring (see Prepare Ethernet Wiring with RJ45 Connectors)	328 ft (100 m)

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


	Terminal Name	Recommended Wire Color	Wire Gauge	Wire Strip Length	Maximum Cable Length
8	RSD +	Red	24 - 16 AWG (0.2 - 1.5 mm²)	5/16 in (8 mm)	150 ft (45 m)
9	RSD -	Black	24 - 16 AWG (0.2 - 1.5 mm²)	5/16 in (8 mm)	150 ft (45 m)

Note

The terminal between the two RSD terminals is not used.

Aux Wiring (See Load Shedding Feature)


	Terminal Name	Recommended Wire Color	Wire Gauge	Wire Strip Length
10	Load Control +	-	24 - 16 AWG (0.2 - 1.5 mm²)	5/16 in (8 mm)
11	Load Control -	-	24 - 16 AWG (0.2 - 1.5 mm²)	5/16 in (8 mm)

TACO Low Voltage Harness


	Terminal Name
12	TACO low voltage harness (provides 12V power to TACO)