ZTE Corporation ZXMBW-E9230 Manuale Utente
Chapter 2 Hardware Description
WRPM Module
In ZXMBW E9230, the WiMAX RRU Power Module (
WRPM
) is re-
sponsible for power supply conversion.
Function
The WRPM module provides the following functions:
�
Power supply conversion
�
Lightning proof
�
EMI filtering
�
Power supply management and alarm reporting
Working Principle
show the working principle of the WRPM module.
F
IGURE
16 WRPM W
ORKING
P
RINCIPLE
(DC)
The WRPM module consists of EMI filtering unit, protection unit,
DC-DC conversion unit, and alarm monitoring unit. The functions
of the units are described as follows:
DC-DC conversion unit, and alarm monitoring unit. The functions
of the units are described as follows:
�
The EMI filtering unit provides the filtering function.
�
The protection unit provides over-voltage or under-voltage
protection.
protection.
�
The DC-DC conversion unit implements power supply conver-
sion.
sion.
�
The alarm monitoring unit reports such alarms as under-volt-
age, over-voltage and over-current alarms.
age, over-voltage and over-current alarms.
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