l Communicates with the upper device using a COM or an RS485/RS232 serial port;
sends control signals based on the values of monitored parameters or the control
command sent by the upper device; detects power distribution parameters, power supply
module parameters, and auxiliary digital parameters in real time.
l Connects to one to two groups of lead acid batteries and uses a monitoring module to
manage the batteries; provides complete management for battery charging and
discharging, ensuring efficient battery usage.
l Connects to a sensor transfer box using a DB50 port, detecting analog parameters and
digital parameters, and outputting control signals.
l Uses a monitoring module to monitor all running parameters for the ETP4890 power
system in real time; determines the working status; reports alarms in a timely manner.
l Clearly displays the monitoring and alarm information on the liquid crystal display
(LCD) of the monitoring module; allows operations such as parameter setting on the
LCD of the monitoring module.
Appearance
Figure 6-20 shows the appearance of the ETP4890 power system.
Figure 6-20 ETP4890 power system
Configuration
Table 6-14 lists the components of the ETP4890 power system.
Table 6-14 Component configuration of the ETP4890 power system
Component
Quantity
AC and DC power distribution subrack 1
Monitoring module 1
Power supply module R4830N1/R4830G1 1 to 3 (optional; by default, the R4830N1 is
configured)
The ETP4890 power system can be configured with three power supply modules, which are
connected in parallel for output.
Table 6-15 shows the mapping between the quantity of power supply modules in the
ETP4890 power system and the maximum output current.
SmartAX MA5600T/MA5603T/MA5608T Multi-service
Access Module
Hardware Description
6 Electromechanical Device
Issue 24 (2018-07-30) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
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