Bcu Interface Introduction (Left Side); Bcu Interface Introduction (Right Side); Bcu Functional Interfaces Definition - BYD Battery-Box HV series User Manual

5.3.1 BCU Interface Introduction (Left Side)

Position
A
B
C
D
E

5.3.2 BCU Interface Introduction (Right Side)

Position
A

5.3.3 BCU Functional Interfaces Definition

No. Interface Name
1
2
3 GND
4 WAN
5 COM
6 System Air Switch
7
BYD Battery-Box HV User Manual
Designation
WAN
COM
G
P-
P+
Designation
System Air Switch
The system positive terminal, connected to the inverter positive
P+
terminal for battery
The system negative terminal, connected to the inverter negative
P-
terminal for battery
Grounding terminal, connected to the ground
Connected to the Ethernet, to complete the functions of
communication and remote program update
Containing RS485, CAN, and enable signals, outputting 13V power
The main switch of system, which can be operated manually and has
the short circuit protection function
Left side terminals
Right side terminals
Description