Fibocom MG661-EU - ADC

3 Application Interfaces
36
Figure 14. Reference circuit 1 for serial port level conversion
Figure 15. Reference circuit 2 for serial port level conversion
The level conversion circuits do not apply to applications whose baud rate
exceeds 460Kbps.
Pay attention to TX/RX and CTS/RTS connection.
The pull-up resistor of the serial port level conversion circuit of triode or MOS
tube is recommended to be 10K.
3.3.3 I2C
Background