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HUAWEI MG323 GSM M2M Module
Hardware Guide
Overall Description
Issue 04 (2011-08-22)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
9
Feature
Description
Certification
information
Restriction of the use of certain Hazardous Substances (RoHS),
European Conformity (CE), Federal Communications
Commission (FCC), CMIIT, China Compulsory Certification
(CCC), GCF (GSM Certification Forum)
2.3 Application Block Diagram
Figure 2-1 shows the application block diagram of the MG323 module.
Figure 2-1 Application block diagram of the MG323 module
Antenna
interface
MG323 GSM module
Application interfaces
Charge
UART SIM
Analog
voice
Power
RTC
power
Status
LED
Power-on/
Power-off
Restart
SIM
card
UART
Handset or
earphone
Charging
circuit
On/Off
Reset
2.4 Circuit Block Diagram
The circuit block diagram and major functional units of the MG323 module contain
the following parts:
GSM baseband controller
Power management
Multi-chip package (MCP) memory