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Setting the baud rate of the MD720-3
Communication module and MD720-3 must use the same baud rate. The baud rate
on the MD720-3 is changed using a terminal program.
Table 3-2
Step
1.
2.
3.
4.
Note
The modem is only accessed by AT commands when it is in terminal mode. If
this is not the case, the modem must be reset to factory settings (see \4\,
Chapter 4).
Note
For information on how to insert the SIM card, please refer to \4\, Chapter 2.
Sending and Receiving SMS Messages with MD720-3
Entry ID: 25545680,
V1.0,
Connect a PC to the serial interface of the MD720-3.
Start a terminal program, for example HyperTerminal.
Select the appropriate COM interface to which the MD720-3 modem has been
connected.
Set the character format and baud rate to the same values as the serial
interface of the MD720-3.
The factory settings of the MD720-3 are as follows:
Baud rate: 19200 bits/s
Character format: 8N1.
The baud rate is changed via AT command: AT+IPR=<baud rate>. Enter this
command in the terminal program and press the return key.
12/2013
Procedure
19
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