LTE Standard Module Series
EG915U_Series_Hardware_Design 25 / 81
3 Operating Characteristics
EG915U series module have a total of 126 pins, The subsequent chapters will provide detailed
descriptions of the following interfaces.
⚫ Power supply
⚫ (U)SIM interface
⚫ USB interface
⚫ UART interfaces
⚫ SPI interface
⚫ PCM and I2C interfaces
⚫ Analog audio interfaces
⚫ ADC interfaces
⚫ PSM interface*
⚫ Status indication
⚫ USB_BOOT interface
3.1. Operating Modes
The following table briefly outlines the operating modes to be mentioned in the following chapters.
Table 5: Overview of Operating Modes
Software is active. The module is registered on the network
and ready to send and receive data.
Network connection is ongoing. In this mode, the power
consumption is decided by network setting and data transfer
rate.
Minimum
Functionality Mode
AT+CFUN=0 command can set the module to a minimum functionality mode
without removing the power supply. In this case, both RF function and (U)SIM
card will be invalid.
AT+CFUN=4 command or W_DISABLE# pin can set the module to airplane
mode. In this case, RF function will be invalid.
In this mode, current consumption of the module will be reduced to the minimal
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