Table 3-3 Pin definitions for SIG2 wiring terminals
Pin
Signal
Description
1
VD1
Battery midpoint voltage detection port 1
6
VD2
Battery midpoint voltage detection port 2
2
BTE
Battery temperature sensor port
3
4
ETE
Ambient temperature sensor port
5
7
GAT
Door status sensor port
8
9
CAN+
CAN communications port
10
CAN-
Communications Ports
Table 3-4 Communications port description
Communications
Port
Communications
Parameter
Communications
Protocol
Function
COM
Baud rate: 9600
bit/s, 19200 bit/s,
115200 bit/s
autonegotiation
Master/slave
protocol
Connects to a
Huawei NMS.
-
Provides 12 V
power supply for
external devices.
FE
10M/100M
autonegotiation
SNMP
Connects to a
third-party
management
system.
BIN protocol
Connects to a
Huawei NMS.
HTTPS protocol
Connects to a PC
and manages the
SMU through the
WebUI.
NOTE
All these ports are protected by a security mechanism.
ETP4860-B1A2 Embedded Power
User Manual
3 Components
Issue 04 (2021-01-05)
Copyright © Huawei Technologies Co., Ltd.
20