User Manual
    Smart Machine Smart Decision 
 SIM7600A-H_User Manual_V1.00    2017-11-24 
45
The operating temperature of Module is listed in the following table. 
Table 31: Operating temperature 
Parameter  Min.  Typ.  Max.  Unit 
Normal operation temperature  -30  25  80  ℃ 
Extended operation temperature*  -40  25  85  ℃ 
Storage temperature  -45  25  +90  ℃ 
*Note: Module is able to make and receive voice calls, data calls, SMS and make 
WCDMA/HSPA+/LTE traffic in -40℃ ~ +85℃. The performance will be reduced slightly from 
the 3GPP specifications if the temperature is outside the normal operating temperature range 
and still within the extreme operating temperature range.   
5.3  Operating Mode 
5.3.1  Operating Mode Definition 
The table belowsummarizes the various operating modes of Module series products. 
Table 32: Operating mode Definitions 
Mode  Function 
Normal operation 
GSM/WCDMA / LTE 
Sleep 
In this case, the current consumption of module will be reduced to the 
minimal level and the module can still receive paging message and 
SMS. 
GSM/WCDMA / LTE 
Idle 
Software is active. Module is registered to the network, and the 
module is ready to communicate. 
GSM/WCDMA / LTE 
Talk 
Connection between two subscribers is in progress. In this case, the 
power consumption depends on network settings such as DTX off/on, 
FR/EFR/HR, hopping sequences, antenna. 
GSM/WCDMA/LTE 
Standby 
Module is ready for data transmission, but no data is currently sent or 
received. In this case, power consumption depends on network 
settings. 
GPRS/EDGE/WCDM
A / LTE transmission 
There is data transmission in progress. In this case, power 
consumption is related to network settings (e.g. power control level); 
uplink/downlink data rates, etc. 
Minimum functionality 
mode 
AT command “AT+CFUN=0” can be used to set the module to a 
minimum functionality mode without removing the power supply. In 
this mode, the RF part of the module will not work and the USIM 
card will not be accessible, but the serial port and USB port are still 
accessible. The power consumption in this mode is lower than normal 
mode. 
Flight mode 
AT command “AT+CFUN=4” or pulling down the FLIGHTMODE 
pin can be used to set the module to flight mode without removing the 










