Operating Mode; Functional Diagram - SimCom SIM7200 Hardware Manual

2.1. Operating Mode

The table below summarizes the various operating modes of SIM7200 PCIe.
Table 4: Operating Mode
Mode Status Function
GSM/GPRS/
Sleep EDGE/WC
DMA /LTE
GSM/WCD
Idle
MA/LTE
Normal
operati Voice GSM/WCD
on Call MA
EDGE/HSP
Standby A+/LTE
Data EDGE/HSP
transfer A+ /LTE
AT command "AT+CFUN" 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
Minimum
not work or the USIM card will not be accessible, or both RF part and USIM card will be
functionality mode
closed, and the serial port is still accessible. The power consumption in this mode is lower
than normal mode.

2.2. Functional Diagram

Figure 2 shows the functional diagram of the SIM7200 module, the major functional units of SIM7200
including the following parts:

Baseband processor

Power management unit

Multi-chip package memory

Radio frequency transceiver

Antenna interfaces

52 PIN Mini PCIe Interface
SIM7200-PCIe_ Hardware_Design _V1.01
Module will automatically go into sleep mode if the conditions of sleep
mode are enabling and there is no on air and no hardware interrupt (such
as USB wake-up operation or data on serial port).
In this case, the current consumption of module will be reduced to the
minimal level.
In sleep mode, the module can still receive paging message and SMS.
Software is active. Module is registered to the GSM/WCDMA/LTE
network, and the module is ready to communicate.
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.
Module is ready for EDGE/HSPA+ /LTE data transfer, but no data is
currently sent or received. In this case, power consumption depends on
network settings and EDGE/HSPA+ /LTE configuration.
There is EDGE/HSPA+/LTE data transfer in progress. In this case, power
consumption is related to network settings (e.g. power control level);
uplink/downlink data rates and GPRS configuration (e.g. used multi-slot
settings).
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Smart Machine Smart Decision
2016-05-19