Etp4890 Power System - Huawei UA5000 Manual

UA5000 Universal Access Unit
Environment Monitoring

8.1 ETP4890 Power System

An AC-powered cabinet uses the ETP4890 power system to convert the AC input to the DC
power for power distribution. The small and modular ETP4890 power system supports easy
installation and maintenance, effective LCD and web interface management, and high security
specifications design. The power system supports a maximum of 90 A output current.
Function
The ETP4890 power system supports the following functions:
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Appearance
Figure 8-1
Figure 8-1 ETP4890 power system
Configuration
Table 8-1
Issue 01 (2012-08-17)
Converts AC input to DC inputs and provides the DC inputs for communication devices.
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, rectifier module parameters,
and auxiliary digital parameters in real time.
Connects to one to two groups of lead acid batteries and uses a site monitoring unit (SMU)
to manage the batteries. Manages battery charging and discharging, ensuring efficient
battery usage.
Connects to a sensor transfer box using a DB50 port, detecting analog parameters and digital
parameters, and outputting control signals.
Uses the monitoring module to monitor all running parameters for the ETP4890 power
system in real time, determines the working status, and reports alarms in a timely manner.
The monitoring module LCD of the ETP4890 power system clearly displays the monitor
and alarm information, and allows operations such as parameter setting.
shows the appearance of the ETP4890 power system.
describes the components of the ETP4890 power system.
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