4
2.6
SERVICE SWITCH
SERVICE switch is used to set the UART1 into a known state. Pulling this pin low
activates the service mode and set the UART1 into 38400,N,8,1.
This is intended for service access of the module for having known serial port
settings in order to access the module parameters.
The switch does not affect to any permanent settings. Releasing/driving the pin
high will return serial port 1 into the configured state.