NB-IoT Module Series
BC68-TE-B User Guide
BC68-TE-B_User_Guide 9 / 22
1.
1)
Within operation temperature range, the module is 3GPP compliant.
2.
2)
Within extended temperature range, the module remains the ability to establish and maintain an
SMS, data transmission, etc. There is no unrecoverable malfunction. There are also no effects on
radio spectrum and no harm to radio network. Only one or more parameters like P
out
might reduce in
their value and exceed the specified tolerances. When the temperature returns to the normal
operating temperature levels, the module will meet 3GPP specifications again.
2.2. Functional Diagram
The following figure shows a block diagram of BC68-TE-B.
BC68
U101
Micro USB
J301
USB-UART
Bridge
U301
Switch
J302
J308
DC-DC
U201
USIM
J303
RF
J304
J306
A
rd
u
in
o
LDO U203
Voltage-
level
Translator
U303
Figure 1: Functional Diagram of BC68-TE-B
Arduino Interfaces
Used to connect with STM32 Nucleo-64 development board
RESET Button
Used to reset BC68 module
Physical Characteristics
Size: (74.0±0.15)mm × (70.0±0.15)mm × (1.6±0.15mm)
Firmware Upgrade
Firmware upgrade via main port or DFOTA
Antenna Interface
Connected to antenna pad with 50
Ω impedance control
NOTES
