WisLink-Cellular RAK2011
V 1.0 | Aug. 2018
Author:
Gan, Penn
Approval:
Ken Yu
7
of
28
2.3 Interfaces
It is built around Quectel BG96 LPWA IoT cellular module and provides the following interfaces, headers, jumpers,
buttons and connectors:
Micro-B USB
Micro SIM Card Slot
Arduino Headers (UART1, UART3, RESET, PWRKEY, STATUS, AP_READY, DTR, RI, PSM_IDC,
W_DISABLE, 5V, 3.3V)
2x4 PCM Voice Headers (I2C, I2S)
2x3 Digital/Analog I/O Headers (ADC0, ADC1, GPIO0, GPIO1)
1x4 Debug UART Header (UART2)
1x2 USB BOOT Jumper
It has two push buttons to allow the user to power on/off and reset the board:
POWER_KEY – Power on/off the BG96 module
RESET – Reset the BG96 module
It has two SMA antenna connectors:
Cellular (LTE/GSM) Antenna (3GPP Bands) – UART1
GPS Antenna (1575.42±1.023 MHz) – UART3
2.4 Operating Modes
BG96 LPWA IoT Cellular Arduino Shield can operate in the following modes:
Normal Operation
Idle
- Software is active. The BG96 module has registered on network, and it is ready to send and receive data.
Talk/Data
- Network connection is ongoing; the power consumption is decided by network setting and data
transfer rate.
Extended Idle Mode DRX (e-I-DRX)
- BG96 module and the network may negotiate over non-access stratum
signaling the use of e-I-DRX for reducing power consumption, while being available for mobile terminating data
and/or network originated procedures within a certain delay dependent on the DRX cycle value.
Airplane Mode
- AT+CFUN command or W_DISABLE# pin can set the module into airplane mode. In this case, RF
function will be invalid.
Minimum Functionality Mode
- AT+CFUN command can set the BG96 module into a minimum functionality mode
without removing the power supply. In this case, both RF function and (U)SIM card will be invalid.
Sleep Mode
- In this mode, the current consumption of the BG96 module will be reduced to a lower level. During this
mode, the BG96 module can still receive paging message, SMS and TCP/UDP data from the network normally.
Power Saving Mode (PSM)
- The BG96 module may enter into Power Saving Mode for reducing its power
consumption. PSM is similar to power-off, but the BG96 module remains registered on the network and there is no
need to reestablish PDN connections.
Power OFF Mode
- In this mode, the power management unit shuts down the power supply. Software is not active.
The serial interfaces are not accessible, but operating voltage remains applied.
