Pin
Signal
Description
5
IO2-
generated when the dry contact input is closed.
When the pin is used as a dry contact output,
the alarm action is as follows: the monitoring
of the SMU11C is normal when the dry contact
output is disconnected, and an alarm is
generated when the dry contact output is
closed.)
7
DI4+
Dry contact input
8
DI4-
9
DI5+
Dry contact input
10
DI5-
Table 3-10 Pin definitions
Pin
Signal
Description
1
VD1
Midpoint voltage detection port 1
6
VD2
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 3-11 Communications port description
Communications
Port
Communications
Parameter
Communicatio
ns Protocol
Function
COM1
Baud rate: 9600
bit/s, 19200 bit/s,
or 115200 bit/s
Master/slave
protocol
Northbound
communication
port, connects to a
Huawei NMS.
ETP4860-B1A2 Embedded Power
User Manual
3 Components
Issue 04 (2021-01-05)
Copyright © Huawei Technologies Co., Ltd.
25