Huawei SMU11B User Manual page 10

SMU11B Site Monitoring Unit
User Manual
Pin
2
3
4
5
7
8
9
10
Communications Ports
Table 1-4 Communications port description
Communications
Port
COM
FE
NOTE
All these ports are protected by a security mechanism.
Figure 1-3 Pins in the COM port
Issue 03 (2022-06-06)
Signal
BTE
ETE
GAT
CAN+
CAN-
Communications
Parameter
Baud rate: 9600
bit/s, 19200 bit/s,
115200 bit/s
10/100 M
autonegotiation
Copyright © Huawei Technologies Co., Ltd.
1 Description of Components
Description
Battery temperature
sensor port
Ambient temperature
sensor port
Door status sensor port
CAN communications
port
Communications Function
Protocol
Master/slave Manages site
protocol devices or third-
party devices.
- Provides 12 V
power supply for
external devices.
SNMP protocols Connects to a
third-party
management
system.
HTTPS protocols Connects to a PC
and manages the
SMU through the
WebUI.
4