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M10 Hardware Design
M10_HD_V3.0
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3.2. Operating modes
The table below briefly summarizes the various operating modes referred to in the following
chapters.
Table 6: Overview of operating modes
Mode
Function
Normal
operation
GSM/GPRS
SLEEP
The module will automatically go into SLEEP mode if DTR
is set to high level and there is no interrupt (such as GPIO
interrupt or data on serial port).
In this case, the current consumption of module will reduce
to the minimal level.
During SLEEP mode, the module can still receive paging
message and SMS from the system normally.
GSM IDLE
Software is active. The module has registered to the GSM
network, and the module is ready to send and receive data.
GSM TALK
GSM connection is ongoing. In this mode, the power
consumption is decided by the configuration of Power
Control Level (PCL), dynamic DTX control and the
working RF band.
GPRS IDLE
The module is not registered to GPRS network. The module
is not reachable through GPRS channel.
GPRS
STANDBY
The module is registered to GPRS network, but no GPRS
PDP context is active. The SGSN knows the Routing Area
where the module is located at.
GPRS
READY
The PDP context is active, but no data transfer is going on.
The module is ready to receive or send GPRS data. The
SGSN knows the cell where the module is located at.
GPRS DATA There is GPRS data in transfer. In this mode, power
consumption is decided by the PCL, working RF band and
GPRS multi-slot configuration.
POWER
DOWN
1)
Normal shutdown by sending the “AT+QPOWD=1” command, using the
PWRKEY or using the EMERG_OFF
pin. The power management ASIC
disconnects the power supply from the base band part of the module, and
only the power supply for the RTC is remained. Software is not active. The
serial interfaces are not accessible. Operating voltage (connected to VBAT)
remains applied.
Minimum
functionality
mode (without
removing power
supply)
“AT+CFUN” command can be set the module to a minimum functionality
mode without removing the power supply. In this case, the RF part of the
module will not work or the SIM card will not be accessible, or both RF part
and SIM card will be closed, but the serial port is still accessible. The power
consumption in this case is very low.
Содержание M10
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