3.5 Expansion Box MUE03A
Appearance
Figure 3-11 MUE03A appearance
(1) Power input port
(2) Communications port
COM_IN
(3) Communications port
COM_OUT1
(4) Communications port
COM_OUT2
(5) Communications port
COM_OUT3
Power Input Port
Table 3-15 Pin definitions for the power input port
Pin
Description
RTN
Power
-48V
Power supply –
Communications Ports
Table 3-16 Communications port description
Communicatio
ns Ports
Communications
Parameter
Communications
Protocol
Function
COM_IN
Baud rate: 9600
bit/s, 19200 bit/s,
or 115200 bit/s
Modbus protocol
Connects to the
monitoring
module.
COM_OUT1
Baud rate: 9600
bit/s, 19200 bit/s,
or 115200 bit/s
Modbus protocol
Connects to
intelligent
equipment.
COM_OUT2
COM_OUT3
ETP4860-B1A2 Embedded Power
User Manual
3 Components
Issue 04 (2021-01-05)
Copyright © Huawei Technologies Co., Ltd.
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