Ethernet / Modbus Tcp (Connector J2); Can (Connector J3); Rs485 / Modbus Rtu (Connector J4) - Nuvation Energy NUV300-BC-12 Product Manual

Pin Connection
5 No Connect
6 No Connect
7 LINKBUS_N
8 LINKBUS_P

9.1.2. Ethernet / Modbus TCP (Connector J2)

The Ethernet jack is a standard RJ45 Cat5e rated jack.
Table 37. Ethernet / Modbus TCP Connector Pin Assignment
Pin Connection
1 TD_P
2 TD_N
3 RD_P
4 NUL45
5 NUL45
6 RD_N
7 NUL78
8 NUL78

9.1.3. CAN (Connector J3)

CAN bus termination is not provided by the Low-Voltage BMS on stock production units. Standard 120
Ω termination must be installed at each end of the CAN bus network. Jumper-selectable resistive bus
termination is available upon request.
The CAN interface connector is a standard RJ45 Cat5e rated jack. A green LED on this connector
indicates CAN bus activity.
Pin Connection
1 CAN_P
2 CAN_N
3 COMIO
4 No Connect
5 No Connect
6 No Connect
7 COMIO
8 No Connect

9.1.4. RS485 / Modbus RTU (Connector J4)

RS485 termination is not provided within the Low-Voltage BMS on stock production units. Standard
120 Ω termination must be installed at each end of the Modbus-RTU network. Jumper-selectable
Document ID: NE-PM-002
Description
Not Connected
Not Connected
Link Bus differential pair negative
Link Bus differential pair positive
Description
Transmit differential pair positive
Transmit differential pair negative
Receive differential pair positive
Unused; connected to Pin 5 and terminated
Unused; connected to Pin 4 and terminated
Receive differential pair negative
Unused; connected to Pin 8 and terminated
Unused; connected to Pin 7 and terminated
Table 38. CAN Connector Pin Assignment
Description
CAN bus differential pair positive
CAN bus differential pair negative
Common reference shared with GPIO
Not Connected
Not Connected
Not Connected
Common reference shared with GPIO
Not Connected
148
Nuvation Energy Low-Voltage BMS - Product Manual
Connected to Device
No Connect
No Connect
Cell Interface
Cell Interface
Connected to Device
External Equipment
External Equipment
External Equipment
External Equipment
External Equipment
External Equipment
External Equipment
External Equipment
Connected to Device
External Equipment
External Equipment
External Equipment
No Connect
No Connect
No Connect
External Equipment
No Connect
Rev 1.2, 2021-03-03
Curie Update 1