NB-IoT Module Series
BC65 Hardware Design
BC65_Hardware_Design 19 / 55
Unused pins should be kept unconnected.
3.4. Operating Modes
The module mainly consists of AP, modem and entire module operating modes, and the tables below
describe the NB-IoT operating modes of them.
Table 6: AP Operating Modes
Table 7: Modem Operating Modes
Table 8: 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 this case, the
modem can switch to PSM or DRX/eDRX mode.
DRX/eDRX
The modem is in idle mode, and downlink data can only be received during PTW. In this
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 this case, the modem can switch to connected mode.
Mode
Description
Active
When the AP is in normal mode or the modem is in connected mode, the module will be
active and support all services and functions.
The current consumption in active mode is higher than that in sleep modes.
Light Sleep
When the AP is in idle mode and the modem is in DRX/eDRX mode, the module will
enter Light Sleep mode. In this case, the AP tasks will be suspended and the modem
will only be able to receive downlink data during PTW.
In Light Sleep mode, the current consumption of the module is reduced greatly.
NOTE
