Expansion Box Mue03A - Huawei SMU11B User Manual

SMU11B Site Monitoring Unit
User Manual

1.2 Expansion Box MUE03A

Appearance
Figure 1-5 MUE03A appearance
(1) Power input port
(4) Communications port
COM_OUT2
Power Input Port
Table 1-7 Pin definitions for the power input port
Pin
RTN
-48V
Communications Ports
Table 1-8 Communications port description
Communications
Port
COM_IN
COM_OUT1
COM_OUT2
COM_OUT3
Issue 03 (2022-06-06)
(2) Communications port
COM_IN
(5) Communications port
COM_OUT3
Communications
Parameter
Baud rate: 9600
bit/s, 19200 bit/s,
or 115200 bit/s
Baud rate: 9600
bit/s, 19200 bit/s,
or 115200 bit/s
Copyright © Huawei Technologies Co., Ltd.
1 Description of Components
(3) Communications port
COM_OUT1
Description
Power supply +
Power supply –
Communications Function
Protocol
Master-slave and Connects to the
Modbus protocols monitoring
module.
Master-slave and Connects to an
Modbus protocols intelligent device.
6