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HUAWEI MG323 GSM M2M Module
Hardware Guide
Electrical and Reliability Features
Issue 04 (2011-08-22)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
34
5.3 Working and Storage Temperatures and Humidity
Table 5-2 lists the working and storage temperatures and humidity for the MG323
module.
Table 5-2 Working and storage temperatures and humidity for the MG323 module
Specification
Minimum Value
Maximum Value
Unit
Normal working
temperatures [1]
–20
+70
°C
Extreme working
temperatures [2]
–30 to –20
+70 to +75
°C
Ambient temperature for
storage
–40
+85
°C
Moisture
5
95
%
[1]: When the MG323 module works at this temperature, all its RF indexes comply with the
3GPP TS 45.005 specifications.
[2]: When the MG323 module works at this temperature, certain RF indexes do not comply with
the 3GPP TS 45.005 specifications.
5.4 Electrical Criteria of Application Interfaces
Table 5-3 lists the sequence numbers of pins and definitions of signals on the 50-pin
B2B interface of the MG323 module.
Table 5-3 Sequence numbers of pins and definitions of signals on the B2B interface
Pin No.
Signal Name
Pin No.
Signal Name
1
SIM_CLK
2
INTEAR_N
3
VSIM
4
INTEAR_P
5
SIM_DATA
6
EXTEAR_P
7
SIM_RST
8
EXTEAR_N
9
NC
10
INTMIC_N
11
GND
12
INTMIC_P
13
NC
14
EXTMIC_P
15
NC
16
EXTMIC_N
17
NC
18
GND