3
2)
Connect DTU via serial port
serial port number of the computer connected to the DTU (click Update in the
drop-down menu to display all available serial ports) and related communication
parameters: baud rate and parity bit.
DTU factory default serial port parameters: baud rate 115200, data bit 8, stop bit 1,
check bit no.
Do not insert the SIM card when connecting the DTU through the serial port (the
power will be turned off when inserting and unplugging the SIM card) to prevent the DTU
serial port from entering the data connection mode.
Correctly set serial port parameters , click : connect device .
When the user cannot connect to the dtu through the serial port normally, you can
run the configuration software first , click "connection in configuration mode" , and "wait
for the device to be powered on to enter the configuration mode" appears, and then
power on the device . (note the order of operations)