Product Info

NB-IoT Module Series
BC660K-GL Hardware Design
BC660K-GL_Hardware_Design
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3.3. Operating Modes
The following table describes the three working modes of the module briefly.
Table 5: AP Operating Modes
Table 6: Modem Operating Modes
Table 7: Module Operating Modes
Mode
Description
Normal
In normal mode, the AP handles tasks, such as AT command communication.
Idle
When all tasks are suspended, the AP will enter idle mode.
Mode
Description
Connected
The network is connected and the module supports data transmission. In such a case,
the modem can switch to DRX/eDRX mode.
DRX/eDRX
The modem is in idle mode, and downlink data can be received during PTW only. In
such a case, the modem can switch to PSM or connected mode.
PSM
In power saving mode, the modem is disconnected from the network and cannot
receive any downlink data. In such a case, the modem can switch to eDRX/DRX.
Mode
Description
Active
When the AP is in normal mode or the modem is in connected mode, the module will be
active and supports all services and functions.
The current consumption in active mode is higher than that in sleep modes.
Light Sleep
Generally, when the AP is in idle mode and the modem is in DRX/eDRX mode, the
module will enter Light Sleep mode. In such a case, the AP tasks will be suspended and
the modem will be able to receive downlink data during PTW only.
In Light Sleep mode, the current consumption of the module is reduced greatly.
Deep Sleep
When the AP is in idle mode and the modem is idle or inactive, the module will enter
deep sleep mode in which the CPU is powered off and only the 32 kHz RTC clock is
working.
In deep sleep mode, the current consumption will be reduced to the minimum (typical
value: 800 nA).