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HUAWEI MG323 GSM M2M Module
Hardware Guide
About This Document
Issue 04 (2011-08-22)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
3
About This Document
History
Version
Date
Chapter
Descriptions
01
Creation
02
2010-10-25
1
Deleted “1.2 Related Documents”
3.1
Deleted “Charging Interface (TBD)”
3.6.1
Revised “Table 3-5 UART1 interface signals”
3.8
Deleted “Charging Interface (TBD)”
Added “Audio Interface”
7
Revised “Figure 7-1 Circuits of typical
interfaces in the MG323 module”
03
2011-07-18
2.2
Add authentication information-CCC、GCF
and mode of audio services
3.5.2
Add the maximum time of TERM_ON
3.6
Add signal of the RING while receiving a
message and a voice call
5.2
Revised “Table 5-1 Extreme working
conditions for the MG323 module”
5.4
Revised “Table 5-3 Sequence numbers of
pins and definitions of signals on the B2B
interface” and “Table 5-4 Electrical features
of application interfaces”
5.5.2
Revised “Table 5-6 Working current of the
MG323 module”
6.3
Specify the mode of the 50-pin B2B
connector
04
2011-08-22
3.2
Revised “Figure 3-1 Sequence and
definitions of pins on the B2B signal
interface”
6.4
Revised “Figure 6-5 Structure fixing hole”