NB-IoT Module Series
BC950K-GL_TE-B_User_Guide 14 / 28
2.4. Key Features
Table 2: Key Features of TE-B
Within this range, the module’s performance complies with 3GPP requirements.
Within this range, the module retains the ability to establish and maintain functions such as SMS, data transmission,
without any unrecoverable malfunction. Radio spectrum and radio network remain uninfluenced, whereas the value of one
or more parameters, such as Pout, may decrease and fall below the range of the 3GPP specified tolerances. When the
temperature returns to the normal operating temperature range, the module’s performance will comply with 3GPP
requirements again.
USB interface:
⚫ Supply voltage range: 4.75–5.25 V
⚫ Typical supply voltage: 5.0 V
Arduino interface:
⚫ Supply voltage range: 4.75–5.25 V
⚫ Typical supply voltage: 5.0 V
Power adapter interface:
⚫ Supply voltage range: 4.75–5.25 V
⚫ Typical supply voltage: 5.0 V
⚫ Operating temperature range: -35 °C to +75 °C
1
⚫ Extended temperature range: -40 °C to +85 °C
2
⚫ Storage temperature range: -40 °C to +90 °C
Support 1.8/3.0 V external USIM card
Select the communication object of main UART: “UART-to-USB” or “UART-
to-MCU”.
Support 2 UART interfaces:
Main UART (USB Serial Converter A):
⚫ Used for AT command communication and data transmission,
115200 bps baud rate by default.
⚫ Used for firmware upgrade, 921600 bps baud rate by default.
Debug UART (USB Serial Converter C):
⚫ Used for software debugging, 6 Mbps baud rate by default.
Used for connection with STM32 Nucleo-64 development board
Used to reset BC950K-GL module
Make the module into download mode
Wake up the module from Deep Sleep/Light Sleep mode