HUAWEI MG323 GSM M2M Module
Issue 06 (2013-06-13)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
4
Version Date Chapter Descriptions
05 2013-03-22 2.2 Updated Table 2-1 Feature
2.3
Updated Figure 2-1 Application block
diagram of the MG323 module
2.4
Updated Figure 2-2 Circuit block diagram of
the MG323 module
3.2
Updated Table 3-1 Definitions of pins on the
BEB connector
3.3.2 Updated VBAT interface
3.3.3 Updated Figure 3-3 VCOIN interface circuit
3.4.3 Updated Figure 3-5 Power-off time sequence
3.5.2
Updated Figure 3-6 Connections of the
TERM_ON and RESET pins
3.5.3 Updated Figure 3-7 Driving circuit
3.6.2
Added the description for the level of UART
interface
3.8.3
Updated Figure 3-13 External circuit for 32 Ω
handsets/16 Ω headsets
3.8.3
Updated Figure 3-14 External circuit for the
microphone interface
5.2
Updated extreme working conditions of
MG323 module
5.4
Updated Table 5-4 Electrical features of
application interfaces
5.2.2 Updated working current of MG323 module
6.4
Updated Figure 6-6 MG323 module
installation
7
Updated Figure 7-1 Circuits of typical
interfaces in the MG323 module
06 2013-06-13 3.2 Updated Table 3-1
3.4.2 Updated Figure 3-4 Power-on time sequence
3.6.1 Updated Chapter 3.6.1 Overview
3.7.3
Deleted Chapter 3.7.3 ESD Protection for the
SIM Card Interface
