Pin Signal Description
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 1-4 Communications port description
Communications
Port
Communications
Parameter
Communications
Protocol
Function
COM Baud rate: 9600
bit/s, 19200 bit/s,
115200 bit/s
Master/slave
protocol
Manages site
devices or third-
party devices.
- Provides 12 V
power supply for
external devices.
FE 10/100 M
autonegotiation
SNMP protocols Connects to a
third-party
management
system.
HTTPS protocols Connects to a PC
and manages the
SMU through the
WebUI.
NOTE
All these ports are protected by a security mechanism.
Figure 1-3 Pins in the COM port
SMU11B Site Monitoring Unit
User Manual 1 Description of Components
Issue 03 (2022-06-06) Copyright © Huawei Technologies Co., Ltd. 4
To Next Page
Loading...
Need help?
General
